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

question 60

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

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Definitions:

Discount Period

The time frame in which a discount is offered for prompt payment of an invoice, encouraging early payment by customers.

Shrinkage

The loss of inventory that can occur from theft, damage, or errors in the counting or recording of stock.

Purchase Allowance

Purchase allowance is a reduction in the purchase price, granted by the seller to the buyer, often due to defects in goods or discrepancies in the order.