The manager of a computer software company wishes to study the number of hours per week senior executives by type of industry spend at their desktop computers. The manager selected a sample of five executives from each of three industries. At the .05 significance level, can she conclude there is a difference in the mean number of hours spent per week by industry?

a. What are the null and alternate hypotheses?

b. What is the critical value?

c. Compute the test statistic.

d. Compute the p-value.

e. What is your decision regarding the null hypothesis?

f. Interpret the result.

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