Suppose the distribution of W is approximately normal. a. Calculate the mean and standard deviation of the

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Suppose the distribution of W is approximately normal.

a. Calculate the mean and standard deviation of the distribution of W.

b. Specify the competing hypotheses to determine whether the median of Population 1 is greater than the median of Population 2.

c. Calculate the value of the test statistic Z.

d. What is the decision rule w ith α = 0.05?

e. What is the conclusion?

17. The follow ing data are provided for tw o independent samples: W = 545, n1 = 25, and n2 =

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Business Statistics Communicating With Numbers

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Suppose the distribution of W is approximately normal. a. Calculate the mean and standard deviation of the

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Business Statistics Communicating With Numbers

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