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Home Q & A Board Science-Related Homework Help Mathematics Statistics and Probability
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kate lynn kate lynn
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6 years ago
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 populations of sales for the two branches.
 a. Provide the hypotheses for this test.
  b. Compute the mean W.
  c. Compute the standard deviation W.
  d. The sum of the ranks for branch A was determined to be 184.5 . Compute the test statistic z.
  e. Use  = .10 and test to determine if there is a significant difference in the populations of the sales of the two branches.
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racheyrachey
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kate lynn Author
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6 years ago
Helped a lot
Shuqin
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Yesterday
Thank you, thank you, thank you!
cipcal
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2 hours ago
this is exactly what I needed
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