A researcher has used a standard test in measuring the job-satisfaction scores for employees randomly selected from three departments of a large firm. Interpret the results summarized in the following Minitab output.
Answer to relevant QuestionsA large investment firm claims that no discrepancy exists between the average incomes of its male and female investment counselors. Random samples consisting of 15 male counselors and 17 female counselors have been selected, ...Use the pooled-variances t-test of Chapter 11 in comparing the sample means for the data of Exercise 12.30. Is the conclusion consistent with the one reached in that exercise? Explain. In exercise Differentiate between the independent and dependent variables in an experiment. Compare the randomized block ANOVA with two treatments to the dependent-samples t-test of Chapter 11. Given the following data for a two-way ANOVA, identify the sets of null and alternative hypotheses, then use the 0.05 level in testing each null hypothesis. (Use data file XR12072.)
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