Hypothesis Testing: Time Spent at the Computer

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 meannumber 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,

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.