A Researcher Wants to Find Out If a New Math

question 159

Multiple Choice

A researcher wants to find out if a new math program is superior to the old math program that is used to teach college algebra at a community college.She selects 400 students from the total student body of 4,000 students to participate in this study.The 400 students would be considered the

• A) sample.
• B) experimental group.
• C) population.
• D) control group.

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Definitions:

Variable Costs

Costs that change in proportion to the level of activity or volume of goods produced in a business.

Unit Contribution Margin

The dollars available from each unit of sales to cover fixed costs and provide operating profits.

Fixed Costs

Expenses that do not change with the level of production or sales over the short term, such as rent and salaries.