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A researcher studying stress is interested in the blood pressure measurements of chief executive ofcers (CEOs) of major corporations. He has good reason to believe

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A researcher studying stress is interested in the blood pressure measurements of chief executive ofcers (CEOs) of major corporations. He has good reason to believe that the mean systolic blood pressure, 1,1, of CEOs of major corporations is less than 136 mm Hg, which is the value reported in a possibly outdated journal article. He plans to perform a statistical test. He measures the systolic blood pressures of a random sampl_e of CEOs of major corporations and finds the mean of the sample to be 128 mm Hg and the standard deviation of the sample to be 18 mm Hg. Based on this information, complete the parts below. (a) What are the null hypothesis H0 and the alternative hypothesis H1 that should be used for the test? (b) Suppose that the researcher decides to reject the null hypothesis. What sort of error might he be making? (Choose one) V (C) Suppose the true mean systolic blood pressure of CEOs of major corporations is 136 mm Hg. Fill in the blanks to describe a Type I error. A Type I error would be (Choose one) V the hypothesis that [J is (Choose one) V (Choose one) V when, in fact, [.1 is (Choose one) V ii [F E|E| Elan E|=E| EIE| X S

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