# A sociologist wants to know about the stress levels in the nation ov.docx

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A sociologist wants to know about the stress levels in the nation over the past years. In the late 2000s, the average score on the Brown's Stress Inventory (BSI) in the nation was 19 with a standard deviation of 6.6. A current day sample of 30 produces a mean BSI score of 18.4. What can the sociologist concludes with an of 0.01? a) What is the appropriate test statistic? ---Select--- na z-test one-sample t-test independent-samples t-test related-samples t-test b) Population: ---Select--- current sample the nation the years stress levels the BSI score Sample: ---Select--- current sample the nation the years stress levels the BSI score c) Compute the appropriate test statistic(s) to make a decision about H0. (Hint: Make sure to write down the null and alternative hypotheses to help solve the problem.)

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