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In Exercises 1-4, use the results from a Hankook Tire Gauge Index survey of a simple ran- dom sample of 1020 adults. Among the
In Exercises 1-4, use the results from a Hankook Tire Gauge Index survey of a simple ran- dom sample of 1020 adults. Among the 1020 respondents, 86% rated themselves as above average drivers. We want to test the claim that more than 3/4 of adults rate themselves as above average drivers. 1. Number and Proportions a. Identify the actual number of respondents who rated themselves as above average drivers. b. Identify the sample proportion and use the symbol that represents it. c. For the hypothesis test, identify the value used for the population proportion and use the symbol that represents it. 2. Null and Alternative Hypotheses and Test Statistic a. Identify the null hypothesis and the alternative hypothesis. b. Find the value of the test statistic. 3. Requirements Are the requirements of the hypothesis test all satisfied? Explain.
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