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# Conclude the Mean

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The manager of a department store wishes to study the number of minutes top salespeople at his store spend at their computer terminals in order to process "end of day closing" by the department name.

The manager selected a sample of 5 (five) salespeople from each of three departments.

At the .05 significance level, can she conclude there is a difference in the mean number of minutes spent at doing the "end of day closing" per week by department?

(see data in the attached file)

https://brainmass.com/statistics/hypothesis-testing/conclude-mean-differences-15010

#### Solution Preview

Electronics Toys Clothing
30 10 15
25 15 10
27 16 12
31 14 11
24 13 18

The manager of a department store wishes to study the number of minutes top salespeople at his store spend at their computer terminals in order to process "end of day closing" by the department name.

The manager selected a sample of 5 (five) salespeople from each of three ...

#### Solution Summary

The manager of a department store wishes to study the number of minutes top salespeople at his store spend at their computer terminals in order to process "end of day closing" by the department name.

The manager selected a sample of 5 (five) salespeople from each of three departments.

At the .05 significance level, can she conclude there is a difference in the mean number of minutes spent at doing the "end of day closing" per week by department?

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