Among a Sample of 76 Students Selected at Random from One

Multiple Choice

Among a sample of 76 students selected at random from one college, the mean number of siblings is $1.5$ with a standard deviation of $1.2$ . Find the $95 \%$ confidence interval. Round your answer to two decimal places.

A) $1.47 < \mu < 1.53$
B) $1.22 < \mu < 1.78$
C) $74.04 < \mu < 77.96$
D) $1.36 < \mu < 1.64$