Use the following information to answer the question. Can deep- knee bends help you stay alert in class? Forty subjects were measured for alertness at the beginning of class then voluntarily performed fifteen deep- knee bends followed by a forty- five minute lecture. Each subject was then measured for alertness at the end of the lecture. The hypothesis test results for the sign test are summarized below. Assume that all conditions for testing have been met:

-What is the name and value of the test statistic?
A)S = 21
B)F = 21
C)S = 14
D)Z = 5

Question

Use the following information to answer the question. Can deep- knee bends help you stay alert in class? Forty subjects were measured for alertness at the beginning of class then voluntarily performed fifteen deep- knee bends followed by a forty- five minute lecture. Each subject was then measured for alertness at the end of the lecture. The hypothesis test results for the sign test are summarized below. Assume that all conditions for testing have been met:
 
-What is the name and value of the test statistic?
A)S = 21 
B)F = 21 
C)S = 14 
D)Z = 5

Quizplus · Accepted Answer

S is the test statistic for the Wilcoxon signed-rank test, and its value is 21.

Use the Following Information to Answer the Question