The ABC TV program Nightline asked viewers call an 800 phone number to offer the
ID: 3126485 • Letter: T
Question
The ABC TV program Nightline asked viewers call an 800 phone number to offer their opinions on whether the United Nations should continue to be headquartered in the United States. Of more than 186,000 callers, 67% wanted the United Nations out of the United States. At the same time, a scientific poll using a random sample of 500 respondents estimated that the true percentage wanting the United Nations out of the United States to be only 28%.
1. The ABC TV poll is an example of a (circle the best answer)
a. A convenience sample.
b. A voluntary response (self-selected) sample.
c. A simple random sample
2. The type of sampling bias in the ABC TV poll is (circle the best answer)
a. Measurement or response bias.
b. Nonresponse bias.
c. Selection bias.
Explanation / Answer
1. The ABC TV poll is an example of a
c. A simple random sample
2. The type of sampling bias in the ABC TV poll is
a. Measurement or response bias.
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