Which of the Following Is Not a Required Assumption for Constructing

question 178

Multiple Choice

Which of the following is not a required assumption for constructing a confidence interval estimate of the difference between two population means when the samples are small?

• A) The populations are normally distributed.
• B) The population variances are equal.
• C) The population variances are equal to 1.
• D) The samples are selected at random from the populations.
• E) The population variances are equal and the population variances are equal to 1.

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Definitions:

Annual Interest Rate

The percentage of interest that will be charged or earned on an amount of money over the span of a year.

Deposit

Money placed into a financial institution for safekeeping, which can also earn interest depending on the type of account.

Semiannually Compounded Rate

An interest rate that is compounded twice a year, affecting the total amount of interest earned or paid.

Interest

The cost of borrowing money, typically expressed as an annual percentage of the loan amount.