Difference in the mean number of months

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Reference no: EM1378420

Question: A senior accounting major at Midsouth State University has job offers from 4-CPA companies. To explore the offers further, she asked a sample of recent trainees how many months each worked for the company before receiving a increase in salary. The sample information is:

Number of months before first raise in salary

CPA Inc. AB Int. Acct. Ltd. Pfisters

12 14 18 12

10 12 12 14

14 10 16 16

12 10

At the .05 level of significance, is there a difference in the mean number of months before a raise was granted among the four firms?

Reference no: EM1378420

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