A senior accounting major at Midsouth State University has job offers from four

Question

A senior accounting major at Midsouth State University has job offers from four CPA firms. To explore the offers further, she asked a sample of recent trainees how many months each worked for the firm before receiving a raise in salary. The sample information is submitted to MINITAB with the following results:

Reject H0 if F > . (Round your answer to 2 decimal places.)

At the 0.01 level of significance, is there a difference in the mean number of months before a raise was granted among the four CPA firms?

  Analysis of Variance   Source df SS MS F   Factor 5        28.05    5.61    3.08       Error 12        21.84    1.82      Total 17        49.89   

Explanation / Answer

The critical F at df=(5,12) is 5.06.

Reject H0 if F>5.06.

The F test statistic do not fall in critical region. Therefore, fail to reject null hypothesis. There is not sufficient sample evidence to conclude that there is differnce in mean number of months before a raise was granted among the four CPA firms.

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