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Vitamins in Milk - Milk is a good source of many vitamins that can help us stay healthy. Regulatory agencies in the US suggest that skim milk should be fortified with Vitamin A at the level of 600 micrograms per quart. A study in 2016 collected a sample of 33 skim milk bottles from a particular dairy and found the average vitamin A concentration was 606.7 micrograms per quart with a standard deviation of 13.1 micrograms per quart. A medical researcher wants to determine if the mean vitamin A concentration in skim milk from this dairy is different from 600 micrograms per quart. 1. Which set of hypotheses should be used for testing this claim? OA. Ho : H = 600 vs. Ha : H # 600 оВ. Но : и 3 606.7 vs. Ha : и # 606.7 ос. Но : и %3D600 vs. Ha : и > 600 OD. Ho : H = 600 vs. Ha :u < 600 2. Which of the following conditions must be met for the hypothesis test to be valid? Check all that apply. O A. The sample measurements must be normally distributed. B. The sample size must be at least 30 or the population data must be normally distributed. MC. There must be at least 10 'successes' and 10 'failures' in the observed data. OD. Each observation must be independent of the observations in the data set. OE. There must be count of at least 5 quarts of milk in each category. 3. Calculate the test statistic: 2,9381

Vitamins in Milk - Milk is a good source of many vitamins that can help us stay healthy. Regulatory agencies in the US suggest that skim milk should be fortified with Vitamin A at the level of 600 micrograms per quart. A study in 2016 collected a sample of 33 skim milk bottles from a particular dairy and found the average vitamin A concentration was 606.7 micrograms per quart with a standard deviation of 13.1 micrograms per quart. A medical researcher wants to determine if the mean vitamin A concentration in skim milk from this dairy is different from 600 micrograms per quart. 1. Which set of hypotheses should be used for testing this claim? OA. Ho : H = 600 vs. Ha : H # 600 оВ. Но : и 3 606.7 vs. Ha : и # 606.7 ос. Но : и %3D600 vs. Ha : и > 600 OD. Ho : H = 600 vs. Ha :u < 600 2. Which of the following conditions must be met for the hypothesis test to be valid? Check all that apply. O A. The sample measurements must be normally distributed. B. The sample size must be at least 30 or the population data must be normally distributed. MC. There must be at least 10 'successes' and 10 'failures' in the observed data. OD. Each observation must be independent of the observations in the data set. OE. There must be count of at least 5 quarts of milk in each category. 3. Calculate the test statistic: 2,9381

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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I need help with question 2 and 9 plz. 

6. The results of this test indicate that we have Very Strong evidence against the null hypothesis and a moderate to large effect size. A medical researcher wants to use this information to determine the sample size required to estimate the mean vitamin A concentration in skim milk from this dairy at 95% confidence with a margin of error of no more than 2.72 micrograms per quart using the following formula, n = ()? МЕ 7. What degrees of freedom should be used to calculate the t* multiplier for this scenario? df = 32 8. What is the value of the t* multiplier you would substitute in the formula above? Round your answer to 3 decimal places. 2.037 9. What is the required sample size? Use the correct t* multiplier rounded to 3 decimal places in your calculation and give your answer as a whole number. n = 33
Transcribed Image Text:6. The results of this test indicate that we have Very Strong evidence against the null hypothesis and a moderate to large effect size. A medical researcher wants to use this information to determine the sample size required to estimate the mean vitamin A concentration in skim milk from this dairy at 95% confidence with a margin of error of no more than 2.72 micrograms per quart using the following formula, n = ()? МЕ 7. What degrees of freedom should be used to calculate the t* multiplier for this scenario? df = 32 8. What is the value of the t* multiplier you would substitute in the formula above? Round your answer to 3 decimal places. 2.037 9. What is the required sample size? Use the correct t* multiplier rounded to 3 decimal places in your calculation and give your answer as a whole number. n = 33
Vitamins in Milk - Milk is a good source of many vitamins that can help us stay healthy. Regulatory agencies in the US suggest that skim milk should be fortified with Vitamin A at the level of 600 micrograms per quart. A study in 2016 collected a sample of 33 skim milk bottles from a particular dairy and found the average vitamin A concentration was 606.7 micrograms per quart with a standard deviation of 13.1 micrograms per quart. A medical researcher wants to determine if the mean vitamin A concentration in skim milk from this dairy is different from 600 micrograms per quart. 1. Which set of hypotheses should be used for testing this claim? А. Но : и %3D 600 vs. Ha : и + 600 В. Но : и 3 606.7 vs. Ha : и + 606.7 С. Но : и 3D 600 vs. Ha : и > 600 D. Ho : и 3D 600 vs. Ha : и < 600 2. Which of the following conditions must be met for the hypothesis test to be valid? Check all that apply. O A. The sample measurements must be normally distributed. |B. The sample size must be at least 30 or the population data must be normally distributed. C. There must be at least 10 'successes' and 10 'failures' in the observed data. D. Each observation must be independent of the observations in the data set. E. There must be count of at least 5 quarts of milk in each category. 3. Calculate the test statistic: V = 2.9381
Transcribed Image Text:Vitamins in Milk - Milk is a good source of many vitamins that can help us stay healthy. Regulatory agencies in the US suggest that skim milk should be fortified with Vitamin A at the level of 600 micrograms per quart. A study in 2016 collected a sample of 33 skim milk bottles from a particular dairy and found the average vitamin A concentration was 606.7 micrograms per quart with a standard deviation of 13.1 micrograms per quart. A medical researcher wants to determine if the mean vitamin A concentration in skim milk from this dairy is different from 600 micrograms per quart. 1. Which set of hypotheses should be used for testing this claim? А. Но : и %3D 600 vs. Ha : и + 600 В. Но : и 3 606.7 vs. Ha : и + 606.7 С. Но : и 3D 600 vs. Ha : и > 600 D. Ho : и 3D 600 vs. Ha : и < 600 2. Which of the following conditions must be met for the hypothesis test to be valid? Check all that apply. O A. The sample measurements must be normally distributed. |B. The sample size must be at least 30 or the population data must be normally distributed. C. There must be at least 10 'successes' and 10 'failures' in the observed data. D. Each observation must be independent of the observations in the data set. E. There must be count of at least 5 quarts of milk in each category. 3. Calculate the test statistic: V = 2.9381
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