Determine a? confidence interval for the mean? cost

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A random sample of 20 recent weddings in a country yielded a mean wedding cost of $26,361.75. Assume that recent wedding costs in this country are normally distributed with a standard deviation of ?$8100. Complete parts? (a) through? (c) below.

a. Determine a? 95% confidence interval for the mean? cost, μ?, of all recent weddings in this country. The? 95% confidence interval is from ?$ to ?$

Reference no: EM132943145

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