Find the Value of the Test Statistic $z$ Using $z = \frac { \hat { p } - p } { \sqrt { \frac { p q } { n } } }$

Multiple Choice

Find the value of the test statistic $z$ using $z = \frac { \hat { p } - p } { \sqrt { \frac { p q } { n } } }$ .
A claim is made that the proportion of children who play sports is less than $0.5$ , and the sample statistics include $n = 1320$ subjects with $30 \%$ saying that they play a sport.

A) $14.53$
B) $29.66$
C) $- 29.66$
D) $- 14.53$