A Researcher Is Investigating Which of Two Newly Developed Automobile

question 42

Multiple Choice

A researcher is investigating which of two newly developed automobile engine oils is better at prolonging the life of an engine. Since there are a variety of automobile engines, 20 different engine
Types were randomly selected and were tested using each of the two engine oils. The number of
Hours of continuous use before engine breakdown was recorded for each engine oil. Based on the
Information provided, what type of analysis will yield the most useful information?

• A)Matched pairs comparison of population proportions.
• B)Independent samples comparison of population proportions.
• C)Independent samples comparison of population means.
• D)Matched pairs comparison of population means.

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Definitions:

SUTA

State Unemployment Tax Act - a tax that U.S. employers pay to their state to fund unemployment benefits.

FICA-OASDI

Federal Insurance Contributions Act - Old Age, Survivors, and Disability Insurance; a payroll tax that funds Social Security and Medicare.

FUTA

The Federal Unemployment Tax Act institutes a payroll levy on companies to support state employment organizations.

SUTA

State Unemployment Tax Act; a payroll tax that employers pay to fund their state's unemployment insurance.