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Problem 2: Supplement for Weightlifting Continued n comparison to the previous problem, let us say that the weightlifting supplement company nformed you that how long a female weightlifter has been lifting impacts the amount of muscle mass they can gain. Suppose that you changed your data collection method from what you did in Problem 1. Now you randomly select one weightlifter from each group (supplement and placebo) that have been lifting for 39 to 40 months. Next, you randomly sample one weightlifter from each group that have been lifting for 37 to 38 months. Then, you continue this process until he 20th pair of weightlifters have lifted for 2 months or less. The data contains the whole body ean mass difference in pounds and training experience in months. Can you infer that the supplement group gained more muscle mass on average than the placebo group? Use a = 0.05 for any hypothesis test.

Problem 2: Supplement for Weightlifting Continued n comparison to the previous problem, let us say that the weightlifting supplement company nformed you that how long a female weightlifter has been lifting impacts the amount of muscle mass they can gain. Suppose that you changed your data collection method from what you did in Problem 1. Now you randomly select one weightlifter from each group (supplement and placebo) that have been lifting for 39 to 40 months. Next, you randomly sample one weightlifter from each group that have been lifting for 37 to 38 months. Then, you continue this process until he 20th pair of weightlifters have lifted for 2 months or less. The data contains the whole body ean mass difference in pounds and training experience in months. Can you infer that the supplement group gained more muscle mass on average than the placebo group? Use a = 0.05 for any hypothesis test.

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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Problem 2: Supplement for Weightlifting Continued In comparison to the previous problem, let us say that the weightlifting supplement company informed you that how long a female weightlifter has been lifting impacts the amount of muscle mass they can gain. Suppose that you changed your data collection method from what you did in Problem 1. Now you randomly select one weightlifter from each group (supplement and placebo) that have been lifting for 39 to 40 months. Next, you randomly sample one weightlifter from each group that have been lifting for 37 to 38 months. Then, you continue this process until the 20th pair of weightlifters have lifted for 2 months or less. The data contains the whole body lean mass difference in pounds and training experience in months. Can you infer that the supplement group gained more muscle mass on average than the placebo group? Use a = 0.05 for any hypothesis test. List the conditions necessary to complete this probiem. g) Calculate the test statistic (you may use technology). h) Construct a Rejection Region graph in StatCrunch. i) Calculate the P-value using technology (write the probability statement as well as the exact probability).
Transcribed Image Text:Problem 2: Supplement for Weightlifting Continued In comparison to the previous problem, let us say that the weightlifting supplement company informed you that how long a female weightlifter has been lifting impacts the amount of muscle mass they can gain. Suppose that you changed your data collection method from what you did in Problem 1. Now you randomly select one weightlifter from each group (supplement and placebo) that have been lifting for 39 to 40 months. Next, you randomly sample one weightlifter from each group that have been lifting for 37 to 38 months. Then, you continue this process until the 20th pair of weightlifters have lifted for 2 months or less. The data contains the whole body lean mass difference in pounds and training experience in months. Can you infer that the supplement group gained more muscle mass on average than the placebo group? Use a = 0.05 for any hypothesis test. List the conditions necessary to complete this probiem. g) Calculate the test statistic (you may use technology). h) Construct a Rejection Region graph in StatCrunch. i) Calculate the P-value using technology (write the probability statement as well as the exact probability).
Row Supplement 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 2.39 4.03 3.89 2.79 3.12 4.97 2.46 2.61 6.39 5.39 4.94 8.21 3.53 6.07 3.53 8.56 5.21 6.83 5.1 9.39 sExperience 40 38 35 34 32 30 28 26 24 21 20 17 15 14 11 10 00 8 5 3 2 Placebo 5.22 1.91 1.71 3.63 3.73 2.27 3.95 2.27 4.35 5.08 6.06 8 0.61 -0.39 5.46 3.37 8.48 6.04 5.42 6.14 pExperience 40 37 36 33 31 29 27 25 24 22 19 17 15 13 12 10 7 5 4 1
Transcribed Image Text:Row Supplement 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 2.39 4.03 3.89 2.79 3.12 4.97 2.46 2.61 6.39 5.39 4.94 8.21 3.53 6.07 3.53 8.56 5.21 6.83 5.1 9.39 sExperience 40 38 35 34 32 30 28 26 24 21 20 17 15 14 11 10 00 8 5 3 2 Placebo 5.22 1.91 1.71 3.63 3.73 2.27 3.95 2.27 4.35 5.08 6.06 8 0.61 -0.39 5.46 3.37 8.48 6.04 5.42 6.14 pExperience 40 37 36 33 31 29 27 25 24 22 19 17 15 13 12 10 7 5 4 1
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