A Consumer Group Plans to Test Whether a New Passenger

question 76

Multiple Choice

A consumer group plans to test whether a new passenger car that is advertised to have a mean highway miles per gallon of at least 33 actually meets this level. They plan to test the hypothesis using a significance level of 0.05 and a sample size of n = 100 cars. It is believed that the population standard deviation is 3 mpg. Based upon this information, if the "true" population mean is 32.0 mpg, what is the probability that the test will lead the consumer group to reject the claimed mileage for this car?

• A) About 0.075
• B) Approximately 0.95
• C) 0.05
• D) None of the above

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Definitions:

Cause Stress

Factors or situations that induce a physical or emotional strain or tension in individuals.

Locus of Control

An individual's belief about the extent to which their actions can influence the events and outcomes in their lives.

Broad Preferences

General or overarching choices or inclinations that an individual or group may have.

Geert Hofstede

A Dutch social psychologist who is known for his research on cross-cultural groups and organizations, particularly for developing cultural dimensions theory.