A Marketing Company Reviewing the Length of Television Commercials Monitored

question 71

Multiple Choice

A marketing company reviewing the length of television commercials monitored a random sample
Of commercials over several days. They found that a 95% confidence interval for the mean length
(in seconds) of commercials aired daily was (23, 27) . Which is true?

• A) 95% of the commercials they checked were between 23 and 27 seconds long.
• B) 95% of all the commercials aired were between 23 and 27 seconds a day.
• C) We're 95% sure that the mean commercial length is between 23 and 27 seconds.
• D) 95% of all samples would show mean commercial length between 23 and 27 seconds.
• E) Commercials average between 23 and 27 seconds long on 95% of the days.

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Definitions:

Accuracy

Accuracy is the degree to which the result of a measurement, calculation, or specification conforms to the correct value or standard.

Test Results

The outcome or findings from various types of medical tests used to detect, diagnose, or monitor diseases, conditions, or the function of organs and systems.

Common Fate

A principle in Gestalt psychology stating that elements moving in the same direction are perceived as more related than elements moving in different directions or stationary.

Good Continuation

Good continuation is a principle in Gestalt psychology that describes the tendency for the human visual system to perceive connected lines and patterns as continuing in a smooth, uninterrupted direction.