To investigate the effect of sleep on basal metabolism, seven college students who averaged seven or more hours of sleep a night (Group A), and five students who averaged less than seven hours of sleep a night (Group
B), were examined and their basal metabolism recorded as shown below. Since it was not clear whether the assumptions for a t-test were valid, the researcher decided to employ nonparametric methods. Use the Wilcoxon rank sum procedure to determine whether the metabolism measurements for Group A are significantly higher than those of Group B. Use = 0.05. The null and alternate hypotheses are as follows: : The distributions of metabolism measurements for the two groups are identical. : The distribution of metabolism measurements for Group B is shifted to the left of Group A. (i.e., the metabolism measurements are lower for Group
B) What is the test statistic? : ______________ What is the critical value for the test statistic? ______________ Thus: ______________ Conclude: We ______________ conclude the distribution of metabolism measurements for Group B is lower than those for Group A.

Question

To investigate the effect of sleep on basal metabolism, seven college students who averaged seven or more hours of sleep a night (Group A), and five students who averaged less than seven hours of sleep a night (Group 
B), were examined and their basal metabolism recorded as shown below. Since it was not clear whether the assumptions for a t-test were valid, the researcher decided to employ nonparametric methods. Use the Wilcoxon rank sum procedure to determine whether the metabolism measurements for Group A are significantly higher than those of Group B. Use = 0.05. The null and alternate hypotheses are as follows: : The distributions of metabolism measurements for the two groups are identical. : The distribution of metabolism measurements for Group B is shifted to the left of Group A. (i.e., the metabolism measurements are lower for Group 
B) What is the test statistic? : ______________ What is the critical value for the test statistic? ______________ Thus: ______________ Conclude: We ______________ conclude the distribution of metabolism measurements for Group B is lower than those for Group A.

Quizplus · Accepted Answer

The Answer of To investigate the effect of sleep on basal metabolism, seven college students who averaged seven or more hours of sleep a night (Group A), and five students who averaged less than seven hours of sleep a night (Group 
B), were examined and their basal metabolism recorded as shown below. Since it was not clear whether the assumptions for a t-test were valid, the researcher decided to employ nonparametric methods. Use the Wilcoxon rank sum procedure to determine whether the metabolism measurements for Group A are significantly higher than those of Group B. Use = 0.05. The null and alternate hypotheses are as follows: : The distributions of metabolism measurements for the two groups are identical. : The distribution of metabolism measurements for Group B is shifted to the left of Group A. (i.e., the metabolism measurements are lower for Group 
B) What is the test statistic? : ______________ What is the critical value for the test statistic? ______________ Thus: ______________ Conclude: We ______________ conclude the distribution of metabolism measurements for Group B is lower than those for Group A.

To Investigate the Effect of Sleep on Basal Metabolism, Seven