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

question 97

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) -29.66
• B) 29.66
• C) 14.53
• D) -14.53

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Definitions:

Fixed Costs

Fixed costs are expenses that do not change with the level of production or sales, such as rent, salaries, and insurance.

Variable Costs

Costs that change in proportion to the level of production or business activity.

Profit

The financial gain made in a transaction or operation, calculated as the difference between revenue and expenses.

Fixed Costs

Expenses that do not change in relation to levels of production or sales, remaining constant even as output varies.