Under Which of the Following Conditions Can the Population Mean

question 33

Multiple Choice

Under which of the following conditions can the population mean be estimated without error employing a stratified sample?

• A)When the population is partitioned so that the number of elements in each stratum is proportional to size of the sample to be taken from each stratum.
• B)When the population is partitioned so that the elements in each stratum are equal.
• C)When the population is partitioned in such a way that the variances within strata are equal.
• D)When the population is partitioned so that the elements in each stratum are normally distributed.
• E)None of these are correct.

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Definitions:

Net Income

The total profit of a company after all expenses and taxes have been subtracted from total revenue.

Financial Leverage

A difference between the rate of return on assets and the rate paid to creditors.

Common Stock

A type of security that represents ownership in a corporation, granting holders voting rights and a share in the company's profitability through dividends and/or capital appreciation.

Fixed Costs

Costs that do not change with the level of production or sales within a short period, such as rent, salaries, and insurance.