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# ANOVA: The Difference In Mean Hours

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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 the three industries. At the .05 significance level, can she conclude there is a difference in the mean number of hours spent at at terminal per week by industry?

Banking...................Retail........................Insurance
....12...........................8.................................10
....10...........................8..................................8
....10...........................6..................................6
....12...........................8..................................8
....10..........................10................................10

How is this different from other hypothesis testing?

https://brainmass.com/statistics/analysis-of-variance/anova-the-difference-in-mean-hours-45028

#### Solution Preview

ANOVA: Single Factor

Summary
Groups.........Count.......Sum......Average......Variance
Column 1.........5.............54..........10.8..............1.2
Column ...

#### Solution Summary

The solution is comprised of a detailed step by step calculation of how to determine the difference in mean hours using ANOVA. A table, and how to calculate all the values is provided in the solution.

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