SAT, 27.03.2021 21:30, lolah7516

A random sample of 20 recent weddings in a country yolded a mean wedding cost of $26,342 38. Assume that recent wedding costs in this country are normally distributed with a standa deviation of $7900. Complete parts (a) through (c) below.
a. Determine a 95% confidence interval for the mean cost of all recent weddings in this country.

a) The 96% confidence interval is from $_ to $_
round to nearest cent

b) what’s the margin or error

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A random sample of 20 recent weddings in a country yolded a mean wedding cost of $26,342 38. Assume...