Wedding Costs. A random sample of 20 recent weddings in a country yielded a mean wedding cost

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Wedding Costs. A random sample of 20 recent weddings in a country yielded a mean wedding cost of $26,324.61. Assume that recent wedding costs in this country are normally distributed with a standard deviation of $8000. Complete parts

(a) through (c)

below.

a. Determine a 95% confidence interval for the mean cost, μ, of all recent weddings in this country.

b. Interpret your result in part (a). Choose the correct answer below.

c. Does the mean cost of all recent weddings in this country lie in the confidence interval obtained in part (a)? Explain your answer.

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Introductory Statistics

ISBN: 9781292099729

10th Global Edition

Authors: Neil A. Weiss

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