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

question 45

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 $\mathrm { n } = 696$ drowning deaths of children with $30 \%$ of them attributable to beaches.

• A) \(2.88\)
• B) \(3.05\)
• C) \(- 3.05\)
• D) \(- 2.88\) .

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Definitions:

Bystander Effect

A social psychological phenomenon wherein individuals are less likely to offer help to a victim when other people are present.

Selective Perception

Selective perception is the process by which individuals perceive what they want to in media messages while ignoring opposing viewpoints, based on their background, beliefs, and attitudes.

Response Characteristic

Features or aspects of an individual's reactions or responses to stimuli or situations, often studied in psychological assessments.

Distinctiveness

The quality of being distinguishable or markedly different from others, often leading to a sense of individuality.