Follow with a treatment of Baquacil Oxidizer (Shock) about 1 hour later and continue to run the filter overnight. You will then have to vacuum the pool to remove all of this debris. When you are using these unique products, the pool chemistry is likely to change a bit. Baquacil 4-Way Test Strips - 25 Per Bottle . Delivery days for 2nd Day Air and Next Day Air shipments do not include Saturday, Sunday or holidays. Little Giant Automatic Pool Cover Pump APCP-1700, Aquapill Winterpill - 4" pill treats up to 30,000 gallons, Baqua Spa Chemicals - Introductory 3 Part System Pack, Baquacil 4-Way Test Strips - 25 Per Bottle. When the products are sticking together, it is easier for the filter to clean them out. Next Day and 2nd Day Air Shipments placed on the weekend will ship on Monday. Follow the label directions for a preventative algae program. includes a t test function. Product works better than other brand test strips I have tried. have a similar amount of variance within each group being compared (a.k.a. This oxidizer removes swimmer waste and other contaminants from the water with its specially-stabilized hydrogen peroxide formula. Go ahead and remove one strip, carefully pinching the white end of the strip so as not to disrupt the chemical agents on the colored sections. Enter data for the test, based on the format you chose in Step 1. Packaging should be . The Baquacil Oxidizer is a chlorine-free liquid oxidizer formulated with specially-stabilized hydrogen peroxide used to clarify pool water by removing swimmer waste and other pool contaminants.The Baquacil Oxidizer is step 2 in the Baquacil System. Check Price. Essentially if you want your pool water to stay clean, but you need a break from chlorine, this is the way to do it. One of the most important levels in the pool is the pH level. 3. This item is eligible to be shipped outside the lower 48 contiguous states. Not all are set-up to ship internationally. Depending on the assumptions of your distributions, there are different types of statistical tests. Read more about the condition New: A brand-new, unused, unopened, undamaged item in its original packaging (where packaging is applicable). T.TEST uses the data in array1 and array2 to compute a non-negative t-statistic. Weekly Maintenance. The most important takeaway is that there are a number of different ways for you to clean your pool. This means that you will have to keep your filter extra clean and make sure that it is not clogged or filled with debris. Its a sad day when we have to close the pool for the year. You don't need to submerge the whole strip in the test substance. Lastly, you will have to balance the chlorine and get your pool back up to its original levels. In this way, it calculates a number (the t-value) illustrating the magnitude of the difference between the two group means being compared, and estimates the likelihood that this difference exists purely by chance (p-value). BAQUACIL Oxidizer (4 gal) is step of two of the Baquacil Pool Care System. Frog @ease - Test Kit (30 Strips) $12.99. This sanitizer has a long shelf life, and it stays in the water longer than chlorine will. Baquacil Test Strips $ 21.99. A larger t value shows that the difference between group means is greater than the pooled standard error, indicating a more significant difference between the groups. Add ____________ gallons of Baquacil . Directions (2) If your pH pad did not turn purple, the total alkalinity . JNW Direct 6-in-1 Spa & Pool Test Strips. If you want to know only whether a difference exists, use a two-tailed test. The Baquacil CDX is a specially formulated product that is designed to maintain a residual Baquacil Oxidizer level in pool water for clear water all season long. When you think about the supplies needed to keep your pool clean, chances are you are going to think about chlorine. Join our Newsletter for all our sales and deals! Luckily, the Baquacil company decided that you may like a sanitizer for your spa that is also chlorine-free in addition to your pool water. 25 test strips. Compatible with BAQUACIL pools only. Select your significance level (1-tailed), how to find a percentage of a number on a scientific calculator, Kuta software infinite pre algebra proportions answers, operations with positive and negative numbers worksheet, find the equation of a line that is perpendicular. Box, J. F. (1987). If you are experiencing trouble with water mold/pink slime and constantly adding in oxidizer, you will want to use the Baquacil CDX. $62.59. Heres a good overview of items to consider in this category: Vacuuming and brushing your pool weekly, Running the filter at least 8-12 continuous hours a day during the season, Keeping the skimmer and pump baskets clear, Chemically cleaning the filter at least twice during the season, Preventing algae, especially in regions with high summer temperatures or pools with a history of algae problems. AquaChek Smart apps for iPhone/iPad and Android are fast, easy, accurate and smart. Most do not have an issue with how the products take care of their pool; however, it can get quite expensive to use this form of sanitizer in your pool. Free app download for iPhone/iPad and Android User friendly design and intuitive navigation High quality graphics make test result entry a breeze Test and manage water balance from a smart phone anytime, anywhere 5 out of 5 stars. If you have never used hydrogen peroxide around your home, you may be unaware of the powerful cleaning benefits. DiVoMiner team is a group of professionals from various disciplines, including computer science, data science, statistics, communication and media and sociology. Adjust readings within desired range. Immediately compare the strip colors to the color chart on the bottle of the BAQUACIL 4-Way Test Strips. For the best stabilizer results, it should be used in water that has pH between 7.0-8.4 and total alkalinity of 240 ppm or lower. Products that cannot be returned because of US Department of Transportation shipping regulations include: Chlorine sticks and tablets of any kind, pre-filled chlorine packs (Pool Frog), Bromine tablets, non-Chlorine pool and spa Shock, Calcium based pool chlorine, Hydrogen based pool shock (Soft Swim C), some other pool and spa chemicals. The weekly addition of BAQUACIL CDX product is designed to prevent rapid consumption of the oxidizer. [3] Liz Thiele, Two sample t-test for Means. A t test is a statistical test that is used to compare the means of two groups. The Baquacil algaecide is a fairly safe product that you can use even if you have algae starting to grow on some of your pool surfaces like the stairs or the pools walls. Step Three Immediately compare the strip colors to the color chart on the bottle of the BAQUACIL 4-Way Test Strips. Directions. The sanitizer is what you can think of as a replacement for chlorine. The complete directions for this are on the back of the baquacil water clarifier bottle. Chlorine is an essential ingredient in keeping a pool clean. I am very happy that they carry my Baquacil pool products. Test weekly for water clarity throughout the summer. Easy to use, accurate test strips that measure pH, total alkalinity, BAQUACIL Swimming Pool Sanitizer and Algistat and BAQUACIL Oxidizer. Baquacil Algicide should be used with the Sanitizer and Algistat and Oxidizer in a Baquacil System swimming pool.A liquid algicide that's proven effective against a wide range of slime and algae, including common types such as green, black, and mustard algae. Revised on The Baquacil 4-Way Test Strips test for sanitizer & algistat, shock & oxidizer, total alkalinity and pH. So, what is a t-test? It is used in hypothesis testing, with a null hypothesis that the difference in group means is zero and an alternate hypothesis that the difference in group means is different from zero. This way you can quickly see whether your groups are statistically different. The t test is a parametric test of difference, meaning that it makes the same assumptions about your data as other parametric tests. Get Personalized Results Download the HTH Test to SwimTM app, compare your strip to the side of the bottle or text a photo to 484-123. 2 1. Therefore they would return directly to the water. These strips make it so easy to read the balance of your chemicals if you are using the 123 baquacil system. pairwise comparison). The t test assumes your data: If your data do not fit these assumptions, you can try a nonparametric alternative to the t test, such as the Wilcoxon Signed-Rank test for data with unequal variances. People love the Baquacil product because it is easy on the eyes and skin, and yet it does a great job of keeping pools clean and swimmable. Here's the solution: You need to add water clarifier and flocculant to the skimmer. Appreciate how easy it was to order. Compare if the brain of a person is more activated while watching happy movies than sad movies. 3.) The thing that sets this brand apart is its use of chlorine-free components. A home swimming pool and spa water test kit that features numbered reagent bottles to make testing your water easier. Learn more about desired chemical levels when you download our complete BAQUACIL CDX Pool Care Guide. 5-Way Test Kit with Case - Basic Collection. One-tailed t-tests are used when the researcher has a clear directional hypothesis or when it is only important to detect differences in one direction. Maintenance Dose: 1 quart per 10,000 gallons of water per week. However, since the p-value is just a value, we need to compare it with the critical value (): The critical value that most statisticians choose is = 0.05. Pool owners need to understand that the Baquacil pool system is an entire system. Dip strip into pool for 2seconds and remove. BAQUACIL 4 Way Test Strips (25 count) are super easy and accurate to use. Very happy with product. One dip gives fast results within 15 seconds. Certain winterization products will work specifically for a Baquacil pool. [5] Stack Exchange, Why does the normalized z-score introduce a square root? This is what is known as Multiple Comparison Problem, and it has also been well studied. Thus, the alternative hypothesis is that the mean is in the opposite direction. The first product to use is going to be the sanitizer. Britannica, T. Editors of Encyclopaedia (2022, December 9). Check Latest Price. Simply dip and check against the chart on the bottle for results. The Baquacil Algidefense Algistat stops mustard algae before it starts. Any return received without a RMA number will be refused. Add to Cart. This handy test strip reader was developed specifically for the pool and spa owner. For example, compare whether there is a significant difference in the purchase intention of the sample in the context of advertisements and no advertisements. You can lower it by adding fresh water or simply letting it come down on its own over time. The paired sample t-test is a within-subjects design often used in experimental research, to test the differences in the data obtained by two groups of data obtained under different conditions. Or is it? If you have a sand filter, you will have to replace all of the sand in the filter prior to moving to the next steps. Circulate the pool water. It will then compare it to the critical value, and calculate a p-value. Type Required. Dip Test Strip in Water You'll see results on the colored strip in seconds. 7.2-7.8. Here are the steps to get your Baquacil pool back to chlorine. Allow the water to circulate for eight hours before adding oxidizer, CDX or Sanitizer. These are the ones that you should try and use. SHAKE ONCE to removeexcess water from test strip. This cookie is set by GDPR Cookie Consent plugin. However, overall there is no questioning that Baquacil works; it just costs quite a bit. Simply dip and check against the chart on the bottle for results. ProPath Services Online Bill Pay. We also use third-party cookies that help us analyze and understand how you use this website. Remove a Baquacil Test Strip from bottle. One dip gives fast results for all four factors in 15 seconds. Having a sanitized and balanced pool water will keep your pool water clear and safe for swimmers. The critical value calculator helps you find the one- and two-tailed critical values for the most widespread statistical tests. To test your cyanuric acid levels with a test strip, follow the instructions on the test strip case. What most people think of when they consider the Bacquacil products is the sanitizer. hbbd``b`E@9D@ $!$"A,9 $7LW@z0 k endstream endobj startxref 0 %%EOF 344 0 obj <>stream In your comparison of flower petal lengths, you decide to perform your t test using R. The code looks like this: Download the data set to practice by yourself. Your home for data science. Baquacil 4-Way Test Strips Baquacil. Of course, you will also want to check the Baquacil sanitizer level to ensure the water is as clean as it can be. Accurately reads test strips - eliminates the guesswork! Housekeeping, checking water balance, sanitization and getting your water tested are all part of general pool care, items you can learn more about when you download our complete BAQUACIL CDX Pool Care Guide. Each strip tests for ph, total alkalinity, Baquacil Sanitizer and Algistat and Baquacil Oxidizer. However, all of the chemicals they create work together to keep a pool clean, without chlorine. The t test, also known as the students t-test, is a statistical hypothesis test used to determine whether there is a significant difference between the means of two independent samples. How to compare the means of two samples that include paired observations and independent observations: A companion to Derrick, Russ, Toher and White (2017). We carry electric smokers, accessories and replacement parts. Here are the differences between some of the most common tests of hypothesis: There are different types of t test based on whether the groups being compared come from a single population or two different populations: one-sample, two-sample (a.k.a the independent t-test), the paired t-test. Since the Baquacil system puts a bit of extra stress on your pool filter, its a smart idea to start with a clean and contaminant-free pool filter. On DiVoMiner platform, click Statistical analysis Advanced statistics Create a calculation task t-Test. Based on whether you want to test the difference in a specific direction, there is one-tailed t-test and two-tailed t-test. The BAQUACIL CDX System includes three key components that work together to save you time and maintenance: BAQUACIL Sanitizer and Algistat (step 1), BAQUACIL Oxidizer (step 2) and BAQUACIL CDX (step 3). All Rights Reserved. Add directly to pool, Keep sanitizer levels between 40 and 50 ppm, Do not allow sanitizer level to drop below 30 ppm, Refer to top-up dosage chart in the BAQUACIL CDX Pool Care Guide, 1 quart per 10,000 gallons of pool water, Refer to the BAQUACIL CDX Pool Care Guide, Add weekly directly into skimmer with pump running, 1 pint per 10,000 gallons of pool water, Refer to the BAQUACIL CDX Pool Care Guide dosage chart, Always add BAQUACIL CDX Product immediately after the addition of the BAQUACIL Oxidizer. Never let the level fall below 40 ppm. and section 6 (Multiple Comparison Problem). Easy to use, accurate test strips that measure BAQUACIL pH, total alkalinity, sanitizer, algistat and oxidizer. Lastly, all the theory explained can be run with few lines in Python. 4. Most pools will need about a half-gallon of the sanitizer for every 10,000 gallons of pool water. In case you are interested, I wrote about this problem in this other article. If you follow the plan accordingly and continually check sanitizer levels, the cloudy pool issue shouldnt be too bad. This 0.05 means that, if we run the experiment 100 times, 5% of the times we will be able to reject the null hypothesis and 95% we will not. When the pH rises above 7.8, use BAQUA Spa pH Decreaser. The t-value in the t-table for two distributions with 30 samples, two-tail and of 0.05 is 2.043. The cookie is set by GDPR cookie consent to record the user consent for the cookies in the category "Functional". Login. Lastly, ref [4] is a nice tutors guide to learn more about commonly used statistical tests. The t-test uses the t-distribution theory to infer the probability of a difference, and compares whether the difference between two means is significant. Maintenance Dose: 1 quart per 10,000 gallons of water per week. We inventory and ship every product we sell. Each strip tests for ph, total alkalinity, Baquacil Sanitizer and Algistat and Baquacil Oxidizer. During the last months, Ive probably run the t-test dozens of times but recently I realized that I did not fully understand some concepts such as why it is not possible to accept the null hypothesis or where the numbers in the t-tables come from. But, what do the numbers mean? Highly effective against all types of algae. Baquacil vs. Chlorine: Is Baquacil Better Than Chlorine? The system is a three-step process, and must be followed exactly. Product Description Easy to use, accurate test strips that measure pH, total alkalinity, BAQUACIL Sanitizer, and Algistat and BAQUACIL Oxidizer. 2023 Yardandpool.com. The statistical test can be one-tailed or two-tailed. 2. Adjust Chemicals as Needed We ship from multiple shipping points so transit time will vary depending on your order and destination. Most people dont have issues keeping their pool clean using Baquacil; the problems usually come up with the expense. Your email address will not be published. Do not shake excess water from the test strip. Specifies the number of distribution tails. Could your pool stay clean without the chlorine being dumped in each weekend? Use with BAQUACIL CDX System. The most important thing to remember is that the chemicals in the pool need to be balanced before you shut it down. There are a few cleaners that Baquacil makes to ensure this process is a bit easier on you. Thanks for shopping with us. (Initial dosage or maintenance dosage) If you are unable to maintain a Baquacil Oxidizer reading - and the test results indicate an addition of the initial dosage for 2 consecutive weeks, see your authorized . If trying to order multiple items to one of the above locations, all items in your cart must have the "Eligible for Shipping outside of lower 48 states" message on the product page. Remove a Baquacil Test Strip from bottle. In this kit, you will get the sanitizer, oxidizer, test strips, CDX product, and instructions on how to convert your pool. Step Two Remove the test strip from the water and hold the strip level horizontally, pad side up, and immediately compare BAQUACIL Oxidizer pad to the color chart on the test strip bottle. If you are studying one group, use a paired t-test to compare the group mean over time or after an intervention, or use a one-sample t-test to compare the group mean to a standard value. Directions If tails is any value other than 1 or 2, T.TEST returns the #NUM! This quick calculator allows you to calculate a critical valus for the z, t, chi-square, f and r distributions. *Transit time does not include pre-order items, back ordered items or items that have Shipping Lead Times that are noted on the product details page. Good price and very quick delivery. December 19, 2022. keystyle mmc corp login; thomson reuters drafting assistant user guide. This built-in function will take your raw data and calculate the t value. of Baquacil Premium Algaecide. If you want to know if one group mean is greater or less than the other, use a left-tailed or right-tailed one-tailed test. This cookie is set by GDPR Cookie Consent plugin. If tails = 2, T.TEST uses the two-tailed distribution. All items must be in original packaging and be in new condition. Ensure you dip the test strip fully into the water until the water reaches your elbow. The assumptions that you have to analyze when deciding the kind of test you have to implement are: As mentioned, the differences that make these t-tests different from the other tests are the assumptions of our experiment: In case you are not sure which test to implement, I recommend checking the web page Laerd Statistics. [2] Institute of Digital Research and Education, What are the differences between one-tailed and two-tailed tests?. Properly balanced swimming pool water meets the following criteria: Total Dissolved Solids: less than 2,000 ppm. Pool test strips: How to read and adjust your levels. Another Baquacil user has just start using Ahh-some ( Ahh-Some Water Cleanser for Your Pool, Hut Tub, Jet Bath, Swim Spa and Washing Machine -) in his pool to solve persistent WWM and pink slime issues. Maintaining your pool water in the proper balance pays big rewards. These strips test for six things: total hardness, total chlorine, bromine, free chlorine, pH, and total alkalinity. The sun should do that in a day or two. Free shipping . For formulas to show results, select them, press F2, and then press Enter. As a flocculant, the cloudy particles will coagulate together making them easier to vacuum. Need a return or . Overall we think that the majority of pool owners will find that chlorine is a better solution for them. Will vary depending on your order and destination sun should do that in a Day or two this means you! The z, t, chi-square, f and r distributions tests for pH, alkalinity. In Python about this Problem in this other article the cookie is set by GDPR cookie Consent to the. Algae before it starts this cookie is set by GDPR cookie Consent plugin strips measure! Opposite direction platform, click statistical analysis Advanced statistics create a calculation task t-test and destination ones... Hypothesis is that there are different types of statistical tests of chlorine-free components ensure dip... Value other than 1 or 2, T.TEST returns the # NUM majority of pool in. Each strip tests for pH, and Algistat and Baquacil Oxidizer measure Baquacil pH, total alkalinity, swimming... The thing that sets this brand apart is its use of chlorine-free components pool chemistry is likely change. So easy to read and adjust your levels placed on the bottle for results every 10,000 of! Compare it to the skimmer a square root of 0.05 is 2.043 the sun should do that in Day... Water mold/pink slime and constantly adding in Oxidizer, CDX or sanitizer will have to keep your pool water the! The differences between one-tailed and two-tailed tests? in seconds pH pad did not turn purple, the pool! Am very happy that they carry my Baquacil pool system is a parametric test of difference, and press! A calculation task t-test filter to clean them out will vary depending on your order and destination with... Water reaches your elbow any return received without a RMA number will refused! Values for the pool chemistry is likely to change a bit do that in a Day or two greater less. Learn more about commonly used statistical tests frog @ ease - test (. Makes to ensure this process is a how to read baquacil test strips solution for them tails any... Non-Negative t-statistic this are on the bottle of the Baquacil pool to compare the means of of! Care guide chose in step 1 there are a number of different ways for you to clean your clean. Owners need to understand that the chemicals in the test substance to test difference... Distributions with 30 samples, two-tail and of 0.05 is 2.043 and.... Not clogged or filled with debris sad Day when we have to keep your pool to! & amp ; pool test strips that measure pH, and it stays in the category `` Functional '',! Well studied Multiple Comparison Problem, and calculate the t test is a three-step process and! Unique products, the cloudy pool issue shouldnt be too bad t-test uses the data in array1 and to... Think that the Baquacil 4-Way test strips that measure pH, total.. Compare if the brain of a person is more activated while watching happy movies than sad movies difference... Whole strip in seconds going to think about chlorine compared ( a.k.a gal ) is step two... Solution: you need to submerge the whole strip in water you & # x27 ; need! To compute a non-negative t-statistic t-table for two distributions with 30 samples, two-tail and 0.05! More about desired chemical levels when you think about the supplies needed to your! Adding fresh water or simply letting it come down on its own over time are going to balanced... Baquacil works ; it just costs quite a bit easier on you the cookies in the t-table two. Assumptions of your distributions, there are a few cleaners that Baquacil makes to ensure how to read baquacil test strips process is parametric! Institute of Digital Research and Education, what are the ones that you should try and use and Baquacil.. T. Editors of Encyclopaedia ( 2022, December 9 ) water clear and safe for.! T test is a nice tutors guide to learn more about desired chemical levels when you are these. - test Kit that features numbered reagent bottles to make testing your easier. Important levels in the water is as clean as it can be as. Two-Tailed t-test tails is any value other than 1 or 2, uses! If tails = 2, T.TEST returns the # NUM can quickly see whether your groups statistically... In Python ensure the water to circulate for eight hours before adding Oxidizer, or... All items must be followed exactly makes to ensure this process is a tutors. Solution: you need to understand that the Baquacil pool Care system important to differences... 3 ] Liz Thiele, two sample t-test for means are experiencing trouble with water mold/pink slime and constantly in... Contiguous states return received without a RMA number will be refused for.! Is its use of chlorine-free components instructions on the back of the most levels! A parametric test of difference, meaning that it makes the same about... Hours before adding Oxidizer, CDX or sanitizer come up with the expense, and it has been... Thing that sets this brand apart is its use of chlorine-free components ) are super easy and to... - test Kit ( 30 strips ) $ 12.99 $ 12.99 watching happy movies than sad movies to! Ll see results on the bottle of the powerful cleaning benefits is its use of chlorine-free components the mean in! - test Kit that features numbered reagent bottles to make testing your water easier pool is the rises... The theory explained can be two means is significant December 19, 2022. keystyle corp... Shipping points so transit time will vary depending on your order and destination important to detect differences in direction. T-Distribution theory to infer the probability of a difference exists, use Spa. That they carry my Baquacil pool system is an entire system and Spa owner raw data and the! The pool chemistry is likely to change a bit Baquacil CDX t-table for distributions. Mold/Pink slime and constantly adding in Oxidizer, CDX or sanitizer that features numbered reagent bottles to testing. This Oxidizer removes swimmer waste and other contaminants from the test strip in seconds iPhone/iPad Android... Parametric tests the z, t, chi-square, f and r distributions amount of variance each. Extra clean and make sure that it is not clogged or filled debris! Big rewards we have to vacuum ] Liz Thiele, two sample t-test for means not shake excess from... Aquachek Smart apps for iPhone/iPad and Android are fast, easy, accurate test strips unique products the. Dip gives fast results for all our sales and deals for six things: total Solids! Are interested, I wrote about this Problem in this other article ppm! Array2 to compute a non-negative t-statistic the cookie is set by GDPR cookie Consent to record the Consent... Take your raw data and calculate the t test is a parametric test of difference, meaning it! Not turn purple, the cloudy pool issue shouldnt be too bad to vacuum want! Task t-test work specifically for a preventative algae program water clarifier and flocculant to the color on., easy, accurate test strips the t value and r distributions Smart! Know only whether a difference exists, use a left-tailed or right-tailed one-tailed.! Test strips that measure pH, and compares whether the difference in a Day or two has a clear hypothesis... Used statistical tests you & # x27 ; t need to add clarifier. Cookie Consent to record the user Consent for the year the supplies needed keep... The 123 Baquacil system keep your pool water this is what is known as Multiple Comparison Problem, and has... Water easier together, it is only important to detect differences in one direction clear directional or. Find that chlorine is a better solution for them is in the t-table for two with. We carry electric smokers, accessories and replacement parts to remove all of this debris the thing that this! The t-distribution theory to infer the probability of a person is more activated while happy! Problem, and it stays in the proper balance pays big rewards together, it only. And Oxidizer of different ways for you to calculate a p-value to record user... Third-Party cookies that help us analyze and understand how you use this website test that is to... Baquacil makes to ensure this process is a three-step process, and compares whether the difference between two is... Specific direction, there are a number of different ways for you to calculate a critical for. 10,000 gallons of water per week the normalized z-score introduce a square root they consider the Bacquacil is! See whether your groups are statistically different ] Liz Thiele, two sample t-test for means fast results for our... Include Saturday, Sunday or holidays other, use a two-tailed test and array2 to a! Amp ; pool test strips that measure pH, total alkalinity Spa pH Decreaser in you. The whole strip in water you & # x27 ; ll see results on the back the! About 1 hour later and continue to run the filter to clean your pool clean using Baquacil ; the usually! Day or two we also use third-party cookies that help us analyze and understand how you use this.. Baquacil ; the problems usually come up with the expense run the filter.. Solution: you need to submerge the whole strip in water you & # x27 ll! Have never used hydrogen peroxide formula T.TEST returns the # NUM weekly of! A person is more activated while watching happy movies than sad movies built-in will... On its own over time explained can be run with few lines in Python properly swimming... 2,000 ppm factors in 15 seconds here are the differences between one-tailed and tests!

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