The Weights (In Pounds)of a Random Sample of 32 New

Multiple Choice

The weights (in pounds) of a random sample of 32 new born babies, born at a particular hospital are given below. Find The 95% confidence interval for the mean weight of the population of new born babies born at this hospital.

$\begin{array} { l l l l l l l l } 7.5 & 6.4 & 7.1 & 7.1 & 6.8 & 8.6 & 7.4 & 6.4 \\ 7.4 & 7.0 & 6.0 & 7.8 & 9.0 & 7.3 & 6.5 & 5.8 \\ 8.4 & 7.6 & 7.2 & 6.5 & 8.5 & 7.1 & 6.3 & 6.9 \\ 7.0 & 5.9 & 8.3 & 6.6 & 7.3 & 7.7 & 6.4 & 8.2 \end{array}$

A) $7 \mathrm { lb } < \mu < 7.6 \mathrm { lb }$
B) $6.9 \mathrm { lb } < \mu < 7.5 \mathrm { lb }$
C) $7 \mathrm { lb } < \mu < 7.4 \mathrm { lb }$
D) $7.1 \mathrm { lb } < \mu < 7.3 \mathrm { lb }$