a. What are the null and alternate hypotheses?   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.)

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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 39.56 13.19 9.77 0.001
Error 15 20.26 1.35    
Total 18 59.82      


a. What are the null and alternate hypotheses?

 



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?

 



e. Interpret the result.


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