The monthly sales records of two branches of a department store (Branch A and Branch B) over the last year (12 months) were gathered. It was decided to use the Mann-Whitney-Wilcoxon test to determine if there has been a significant difference between the sales of the two branches.
a.Provide the hypotheses for this test.
b.Compute the mean $\mu$ _T.
c.Compute the standard deviation $\sigma$ _T.
d.The sum of the ranks for branch A was determined to be 184.5. Compute the test statistic Z.
e.Use $\alpha$ = 0.05 and test to determine if there is a significant difference in the populations of the sales of the two branches.

Question

The monthly sales records of two branches of a department store (Branch A and Branch B) over the last year (12 months) were gathered. It was decided to use the Mann-Whitney-Wilcoxon test to determine if there has been a significant difference between the sales of the two branches.
a.Provide the hypotheses for this test.
b.Compute the mean

\mu

_T.
c.Compute the standard deviation

\sigma

_T.
d.The sum of the ranks for branch A was determined to be 184.5. Compute the test statistic Z.
e.Use

\alpha

= 0.05 and test to determine if there is a significant difference in the populations of the sales of the two branches.

Quizplus · Accepted Answer

The Answer of The monthly sales records of two branches of a department store (Branch A and Branch B) over the last year (12 months) were gathered. It was decided to use the Mann-Whitney-Wilcoxon test to determine if there has been a significant difference between the sales of the two branches. a.Provide the hypotheses for this test. b.Compute the mean $\mu$_T. c.Compute the standard deviation $\sigma$_T. d.The sum of the ranks for branch A was determined to be 184.5. Compute the test statistic Z. e.Use $\alpha$ = 0.05 and test to determine if there is a significant difference in the populations of the sales of the two branches.

The Monthly Sales Records of Two Branches of a Department μ\muμ

The Monthly Sales Records of Two Branches of a Department $\mu$