Suppose that we wish to assess whether more than 60 percent of all U. S. households in a particular income class bought life insurance last year. That is, we wish to assess whether p, the proportion of all U. S. households in the income class that bought life insurance last year, exceeds .60. Assume that an insurance survey is based on 1,000 randomly selected U. S. households in the income class and that 640 of these households bought life insurance last year. a) Assuming that p equals .60 and the sample size is 1,000, what is the probability of observing a sample proportion that is at least .64? b) Based on your answer in part a, do you think more than 60 percent of all U. S. households in the income class bought life insurance last year? Explain. NOTE: This question pertains to your reading regarding tolerance/confidence intervals. You can also perform a z test for a once sample difference in proportion.
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How did the cleveland massacre impact standard oil in 1872? standard oil hired all the laborers who were nearly killed during the cleveland massacre. standard oil became a monopoly in the cleveland oil market after the cleveland massacre. standard oil was bought out by other companies in the city after the cleveland massacre. standard oil closed down to avoid additional violence in the wake of the cleveland massacre.
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History, 22.06.2019 07:00
Me! these questions are based on american people in the south essential questions: question 1: for what reasons will one group of people exploit another?focus questions: question 1: what influenced the development of the south more: geography, economy, or slavery?question 2: what were the economic, political and social arguments for and againsts slavery in the first half of the 19th century.
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Suppose that we wish to assess whether more than 60 percent of all U. S. households in a particular...
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