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

question 3

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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.

Find the Value of the Test Statistic Z Using z=p^−ppqnz = \frac { \hat { p } - p } { \sqrt { \frac { p q } { n } } }z=npq​​p^​−p​

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