The Marketing Manager for a Car Manufacturer Is Interested in Determining

question 144

Multiple Choice

The marketing manager for a car manufacturer is interested in determining the proportion of new compact-car owners who would have purchased a passenger-side inflatable air bag if it had been available for an additional cost of $300.The manager believes from previous information that the proportion is 0.30.Suppose that a survey of 200 new compact-car owners is selected and 79 indicate that they would have purchased the inflatable air bags.
-If you were to conduct a test to determine whether there is evidence that the proportion is different from 0.30,which test would you use?

• A) Z test of a population mean.
• B) t test of a population proportion.
• C) Z test of a population proportion.
• D) t test of a population mean.

---

Definitions:

Prenatal Period

The stage of human development that occurs from conception until birth.

Growth

The process of increasing in physical size, intellectual capacity, maturity, or the expansive development of an organism or entity over time.

Fetal

Pertaining to the developing human within the womb, especially beyond the eighth week after conception.

Developmental Psychologist

A professional who studies the psychological growth and changes that occur throughout a person's life, focusing on cognitive, social, and emotional development.