A Consumer Research Group Is Interested in How Older Drivers

question 23

Multiple Choice

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 next two years.
• B)17% is a parameter.
• C)17% is a statistic.
• D)Both A and B
• E)Both A and C

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Definitions:

Rungs

The horizontal lines found in ladder logic diagrams representing electrical circuits, where each rung signifies a unique control element or condition.

Input

In computing and electronics, an input is the signal or data received by a system or component.

Normally Closed

A term used to describe a switch or contact configuration where the default state is making contact (closed), allowing current flow until actuated to open.

Stop Buttons

Manual control devices used to halt machine operations or processes, typically as a safety or emergency measure.