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 $z = \frac { \hat { p } - p } { \sqrt { \frac { p q } { n } } }$ . The claim is that the proportion of drowning deaths of children attributable to beaches is more than 0.25 , and the sample statistics include n=696 drowning deaths of children with 30% of them attributable to beaches.

• A) 2.88
• B) 3.05
• C) -3.05
• D) -2.88

---

Definitions:

Interest

The charge for borrowing money, typically expressed as an annual percentage rate, or the profit earned on money invested.

Obey

To follow or comply with commands, restrictions, or instructions, often from an authority or rule.

Contract

An agreement that is enforceable by law, involving two or more parties, which stipulates their duties and entitlements.

Ratification

The act of officially approving an agreement or treaty, often by a vote or other formal decision.