A consumer research group is interested in how older drivers view hybrid cars.Specifically, they wish to assess the percentage of drivers in the U.S.50 years of age or older who intend
To purchase a hybrid in the next two years.They selected a systematic sample from a list of
AARP (American Association of Retired Persons) members.Based on this sample, they
Estimated the percentage to be 17%.Which of the following statements about this study is
True?
A)17% of all U.S.drivers 50 years of age or older intend to purchase a hybrid in the next two years.
B)17% is a parameter.
C)17% is a statistic.
D)Both A and B
E)Both A and C

Question

Quizplus · Accepted Answer

The 17% figure is a statistic because it is derived from a sample (in this case, a systematic sample of AARP members), not the entire population of U.S. drivers 50 years or older. Parameters refer to measures that describe the entire population, while statistics describe samples.

A Consumer Research Group Is Interested in How Older Drivers