A Survey Randomly Selected 250 Top Executives $\mu$ , of All Top Executives?
A)

Multiple Choice

A survey randomly selected 250 top executives. The average height of these executives was 66.9 inches with a standard deviation of 6.2 inches. What is a 95\% confidence interval for the mean height, $\mu$ , of all top executives?

A) $66.1<\mu<67.7$
B) $65.3<\mu<68.5$
C) $62.8<\mu<66.8$
D) $63.5<\mu<66.1$