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Statement of a problem № m123

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




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