In Developing an Interval Estimate for a Population Mean, the Interval

Multiple Choice

In developing an interval estimate for a population mean, the interval estimate was 62.84 to 69.46. The population standard deviation was assumed to be 6.50, and a sample of 100 observations was used. The mean of the sample was:

A) 56.34.
B) 62.96.
C) 13.24.
D) 66.15.