A Psychologist Is Interested in Determining Whether There Is a Difference

question 28

Essay

A psychologist is interested in determining whether there is a difference of more than one hour between male and female students in the average number of volunteer hours during an academic year.The psychologist selected a random sample of 60 male and 60 female students and observed the following sample information. $$\begin{array} { l c c } & \text { Male } & \text { Female } \\\text { Sample Mean } & 13.24 & 14.68 \\\text { Population Std Dev } & 1.2 & 1.56 \\\text { Sample Size } & 60 & 60\end{array}$$
-Test the claim at ? = .05

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Definitions:

Debit

An accounting entry that results in either an increase in assets or a decrease in liabilities on a company's balance sheet.

Dividends Declared

Profits distributed by a company to its shareholders, usually determined by the board of directors, and not yet paid out.

Normal Balance

The side (debit or credit) of an account that is typically increased; for assets and expenses, it's a debit; for liabilities, equity, and revenue, it's a credit.

Debit

An entry recorded on the left side of an account in bookkeeping, indicating an increase in assets or expenses or a decrease in liabilities, equity, or income.