One-way analysis of variance
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How do I figure this problem out using the population means?
The manager of a computer software company wishes to study the number of hours top executives spend at their computer terminals 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 at a terminal per week by industry?
Banking----Retail-----Insurance
12------------8------------10
10------------8------------8
10------------6------------6
12------------8------------8
10------------10-----------10
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Solution Summary
This solution shows how to conduct a one-way analysis of variance with all calculations done by hand. All formulas, calculations and complete explanations are included.
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This solution shows how to conduct a one-way analysis of variance with all calculations done by hand. All formulas, calculations and complete explanations are included. Please see the attached Word document for the solution to this exercise.
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How do I figure this problem out using the population means?
The manager of a computer software company wishes to study the number of hours top executives spend at their computer terminals 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 at a terminal per week by industry?
Banking----Retail-----Insurance
12------------8 ------------10
10------------8 ------------8
10------------6 ------------6
12------------8 ------------8
10------------10 ----------- 10
Solution
This is an example of an analysis of variance problem with a completely randomized design. A ...
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