Regular Voters in America Thirty-five percent of adult

Chapter 7, Problem 4

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QUESTION:

Regular Voters in America Thirty-five percent of adult Americans are regular voters. A random sample of 250 adults in a medium-size college town were surveyed, and it was found that 110 were regular voters. Estimate the true proportion of regular voters with 90% confidence and comment on your results.

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QUESTION:

Regular Voters in America Thirty-five percent of adult Americans are regular voters. A random sample of 250 adults in a medium-size college town were surveyed, and it was found that 110 were regular voters. Estimate the true proportion of regular voters with 90% confidence and comment on your results.

ANSWER:

Step 1 of 3

Given:

The sample proportion is the number of successes divided by the sample size:

.

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