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In: Statistics and Probability

The manager of a computer software company wishes to study the number of hours senior executives...

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

Retail

Insurance

32

28

30

30

28

28

30

26

26

32

28

28

30

30

30

PLEASE SHOW ANSWER WITHOUT USING MINI TAB OR SOFTWARE

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