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Hypothesis Testing: Time Spent at the Computer

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Scenario: The manager of a computer software company wishes to study the number of hours senior executives spend at their desktop computers by type of industry. 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?

Banking
12, 10, 10, 12, 10,
Retail
8, 8, 6, 8, 10,
Insurance
10, 8, 6, 8, 10,

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Solution Summary

This solution is comprised of a step by step response which illustrates how to compute a hypothesis test and make a decision on whether to reject or fail to reject the null hypothesis based on the data. The full solution is enclosed within an attached Word document.

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