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

question 42

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) \(- 14.53\)

---

Definitions:

Variable Manufacturing Costs

Costs that fluctuate with the level of production output, including expenses such as raw materials and labor.

Opportunity Cost

The expense incurred by not choosing the second-best option available while deciding.

Cash Outlay

The actual amount of money spent or required to be spent on a particular expense, project, or acquisition.

Alternative Investments

Investment assets that do not fall into conventional categories such as stocks, bonds, or cash, including real estate, hedge funds, or commodities.