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 from each firm: How many months did you work before receiving a raise in salary? Using the following ANOVA table, is there a difference in the mean number of months before receiving a raise among the four firms? Use the 0.05 level of significance.   Analysis of Variance Source df SS MS F p Factor 3 36.14 12.05 8.37 0.002 Error 13 18.74 1.44     Total 16 54.88   b. What is the test statistic? (Round your answer to 2 decimal places.) c. What is the p-value? (Round your answer to 3 decimal places.) d. What is your decision regarding the null hypothesis?

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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 from each firm: How many months did you work before receiving a raise in salary? Using the following ANOVA table, is there a difference in the mean number of months before receiving a raise among the four firms? Use the 0.05 level of significance.
 

Analysis of Variance
Source df SS MS F p
Factor 3 36.14 12.05 8.37 0.002
Error 13 18.74 1.44    
Total 16 54.88  

b. What is the test statistic? (Round your answer to 2 decimal places.)

c. What is the p-value? (Round your answer to 3 decimal places.)

d. What is your decision regarding the null hypothesis?

 

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