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

question 2

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:

Specific Invoice Method

An accounting approach to valuing inventory that tracks the cost of each specific item in inventory and is sold.

Ending Inventory

Ending inventory is the value of goods available for sale at the end of an accounting period, calculated as the beginning inventory plus purchases minus the cost of goods sold.

Periodic Inventory System

A method used in accounting to update inventory and cost of goods sold periodically at the end of each accounting period rather than after each sale.

Weighted-Average Method

A cost flow assumption used in inventory accounting that calculates the cost of goods sold based on an average cost of inventory items.