A random sample of 20 recent weddings in a country yielded a mean wedding cost of $26,390.62. Assume that recent wedding costs in this country are normally distributed with a standard deviation of $7700.

Complete parts (a) through (c) below.

Part 1

a. Determine a 95% confidence interval for the mean cost, , of all recent weddings in this country. The 95% confidence interval is from $22,947.0822,947.08 to $29,834.1629,834.16.

Part 2

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

A. We can be 95% confident that any randomly selected recent wedding cost in this country is somewhere within the confidence interval.

B. We can be 95% confident that the mean cost, , of all recent weddings in this country is somewhere within the confidence interval.

C. The mean cost, , of all recent weddings in this country is somewhere within the confidence interval.

D. We can be 95% confident that the sample cost of recent weddings in this country is somewhere within the confidence interval.