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Androstenedione (andro) is a steroid that is thought by some athletes to increase strength. Researchers investigated this claim by collecting a random sample of men and randomly assigning half to receive andro and the other half to receive a placebo. One of the variables measured in the study was the increase in "lat pull down" strength (in pounds) of each subject after 4 weeks. (A lat pull down is a type of weightlifting exercise.) Suppose the researchers wanted to conduct a hypothesis test to compare the increase in lat pull down strength between the two groups at a 0.10 significance level using a directional alternative (that andro increases lat pull down strength more than placebo). Which test(s) could be used? (Select all that apply.) OA. Paired Sample t Test B. Wilcoxon-Mann-Whitney Test OC. Chi-Square Goodness-of-Fit Test OD. Binomial Test for p OE. Two Sample t Test OF. Sign Test

Androstenedione (andro) is a steroid that is thought by some athletes to increase strength. Researchers investigated this claim by collecting a random sample of men and randomly assigning half to receive andro and the other half to receive a placebo. One of the variables measured in the study was the increase in "lat pull down" strength (in pounds) of each subject after 4 weeks. (A lat pull down is a type of weightlifting exercise.) Suppose the researchers wanted to conduct a hypothesis test to compare the increase in lat pull down strength between the two groups at a 0.10 significance level using a directional alternative (that andro increases lat pull down strength more than placebo). Which test(s) could be used? (Select all that apply.) OA. Paired Sample t Test B. Wilcoxon-Mann-Whitney Test OC. Chi-Square Goodness-of-Fit Test OD. Binomial Test for p OE. Two Sample t Test OF. Sign Test

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section: Chapter Questions
Problem 8CR
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Androstenedione (andro) is a steroid that is thought by some athletes to increase strength. Researchers investigated this claim by collecting a random sample of men and randomly assigning half to receive andro and the other half to receive a placebo. One of the variables measured in the study was the increase in "lat pull down" strength (in pounds) of each subject after 4 weeks. (A lat pull down is a type of weightlifting exercise.) Suppose the researchers wanted to conduct a hypothesis test to compare the increase in lat pull down strength between the two groups at a 0.10 significance level using a directional alternative (that andro increases lat pull down strength more than placebo). Which test(s) could be used? (Select all that apply.) OA. Paired Sample t Test OB. Wilcoxon-Mann-Whitney Test OC. Chi-Square Goodness-of-Fit Test OD. Binomial Test for p DE. Two Sample t Test OF. Sign Test
Transcribed Image Text:Androstenedione (andro) is a steroid that is thought by some athletes to increase strength. Researchers investigated this claim by collecting a random sample of men and randomly assigning half to receive andro and the other half to receive a placebo. One of the variables measured in the study was the increase in "lat pull down" strength (in pounds) of each subject after 4 weeks. (A lat pull down is a type of weightlifting exercise.) Suppose the researchers wanted to conduct a hypothesis test to compare the increase in lat pull down strength between the two groups at a 0.10 significance level using a directional alternative (that andro increases lat pull down strength more than placebo). Which test(s) could be used? (Select all that apply.) OA. Paired Sample t Test OB. Wilcoxon-Mann-Whitney Test OC. Chi-Square Goodness-of-Fit Test OD. Binomial Test for p DE. Two Sample t Test OF. Sign Test
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