BCOR 1020 Study Guide - Final Guide: The Wall Street Journal, Confidence Interval, Sampling Distribution

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30 Oct 2014
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The final exam will be multiple choice and t/f only: tourism is a major source of income for many caribbean countries. Bureau of tourism for barbados estimates from a sample of 500 tourists that the average amount spent per day by a tourist is with a margin of error of at a. You take a sample of 20 homes sold recently and find a 95% confidence interval to be 65 3 days. Your confidence interval indicates that the average time to sell a home is greater than 60 days: the nicotine content in cigarettes of a certain brand is normally distributed, with and standard deviation s mean (in milligrams) m. The brand advertises that the mean nicotine content of its cigarettes is 1. 6, but you are suspicious and plan to investigate the advertised claim by testing the hypotheses. The power of this test when the true value of m.