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: Analysis of Variance Source df SS MS F P Factor 3 37.68 12.56 8.97 0.133 Error 14 19.54 1.40 Total 17 57.22

Answer 1

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:

Analysis of Variance

Source	df	SS	MS	F	P
Factor	3	37.68	12.56	8.97
Error	14	19.54	1.4
Total	17	57.22

H1: At least one pair of population means are different

Table value of F with (DF1=3, DF2=14 ) at 0.05 significance level=3.34

Calculated F=8.97 > 3.34 the table value.

The null hypothesis is rejected.

The data indicate that there is a significant difference among the four CPA firms.