In the Context of a Hypothesis Test for Two Proportions $\bar { p }$

question 55

Multiple Choice

In the context of a hypothesis test for two proportions, which of the following statements about the pooled sample proportion, $\bar { p }$ is/are true?
I. It estimates the common value of $p _ { 1 } \text { and } p _ { 2 }$ under the assumption of equal proportions.
II. It is obtained by averaging the two sample proportions $\hat { p } _ { 1 } \text { and } \hat { p } _ { 2 }$
III. It is equal to the proportion of successes in both samples combined.

• A) I and II
• B) III only
• C) I, II, and III
• D) I and III

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Definitions:

Prior Period Adjustment

Corrections made to a company's financial statements for errors or omissions found in previously reported periods.

Treasury Stock Transactions

Activities involving the buyback or resale of a company's own stock, affecting the equity section of a company's balance sheet but not its issued stock number.

Stockholders' Equity

Represents the residual value of a company's assets after deducting its liabilities, essentially indicating the net worth attributable to shareholders.