You Want to Estimate the Difference in Grade Point Averages

question 21

Short Answer

You want to estimate the difference in grade point averages between two groups of college students accurate to within 0.20 grade point, with probability equal to 0.95. If the standard deviation of the grade point measurements is approximately equal to 0.5, how many students must be included in each group? (Assume that the groups will be of equal size.)
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Definitions:

Share Issue

A process by which a company distributes new shares to shareholders, either as part of a public offering or a private placement.

Acquisition Differential

The difference between the cost of an acquisition and the fair value of the net identifiable assets acquired.

Ownership Interest

Refers to the percentage or portion of a company that is owned by a shareholder, indicating a claim on assets and possibly a right to the income of the company.

Equity Method

An accounting technique used to record investments in which the investor has significant influence over the investee but does not control it outright.