Wedding Costs. Refer to Exercise 8.17. Assume that recent wedding costs in the United States are normally distributed with a standard deviation of $8100. a. Determine a 95% confidence interval for the mean cost, μ,ofall recent U.S. weddings. b. Interpret your result in part (a). c. Does the mean cost of all recent U.S. weddings lie in the confidence interval you obtained in part (a)? Explain your answer. .17 Wedding Costs. According to Bride’s Magazine, getting married these days can be expensive when the costs of the reception, engagement ring, bridal gown, pictures—just to name a few—are in-cluded. A simple random sample of 20 recent U.S. weddings yielded the following data on wedding costs, in dollars 19,496 23,789 18,312 14,554 18,460 27,806 21,203 29,288 34,081 27,896 30,098 13,360 33,178 42,646 24,053 32,269 40,406 35,050 21,083 19,510
Wedding Costs. Refer to Exercise 8.17. Assume that recent wedding costs in the United States are
.17 Wedding Costs. According to Bride’s Magazine, getting married these days can be expensive when the costs of the reception, engagement ring, bridal gown, pictures—just to name a few—are in-cluded. A simple random sample of 20 recent U.S. weddings yielded the following data on wedding costs, in dollars
19,496 23,789 18,312 14,554 18,460 27,806 21,203 29,288 34,081 27,896 30,098 13,360 33,178 42,646 24,053 32,269 40,406 35,050 21,083 19,510
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