Null and alternative hypotheses and type ii error

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Reference no: EM13108338

A researcher studying stress is interested in the blood pressure measurements of chief executive officers (CEOs) of major corporations. He believes that the mean systolic blood pressure,u , of CEOs of major corporations is more than134 mm Hg, which is the value reported in a possibly outdated journal article.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 sample of CEOs of major corporations and finds the mean of the sample to be 140 mm Hg and the standard deviation of the sample to be 20 mm Hg.

What are the null and alternative hypothesis for this?

What is a type II error in context of this test?

Suppose that the researcher deceides not to reject the null hypothesis what sort of error might he be making?

Reference no: EM13108338

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