Solomon Wants to Verify That Automatic Toothbrushes Work Better Than

question 86

Multiple Choice

Solomon wants to verify that automatic toothbrushes work better than manual toothbrushes. To test this, he randomly assigns 25 participants to use a Sonicare toothbrush and 25 people to use a manual toothbrush. At the end of the study period he has a dentist inspect each participant's teeth. In this study, the _____ would be considered the independent variable, whereas the _____ would be considered the dependent variable.

• A) type of toothbrush; number of cavities
• B) manual toothbrush; automatic toothbrush
• C) automatic toothbrush; manual toothbrush
• D) number of cavities; type of toothbrush

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Definitions:

Property Taxes

Taxes paid by property owners based on the assessed value of their real estate, typically levied by local governments.

Oversized

Describes an item, position, or trade that is larger than the normal or usual size; often used in finance to refer to large positions.

Production Equipment

Tools and machinery used in the manufacturing process to produce goods and services.

Net Working Capital

A measure of a company's short-term financial health, calculated as current assets minus current liabilities.