Question: In order to be confident about our inference process in any study, the sample should be as representative of the population as possible. 4) Suppose

In order to be confident about our inference process in any study, the sample should be as representative of the population as possible.

4) Suppose a presidential approval poll of 1,500 likely voters in the United States is conducted; 63% of the respondents approve, and 90% of the respondents are registered, Democrats.

PartA: What is the population of the poll?

PartB: Is the sample representative of the population ? Why or why not?

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