Educational TelevisionIn a sample of 200 people, 154 said

Chapter 7, Problem 10E

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QUESTION:

Problem 10E

Educational TelevisionIn a sample of 200 people, 154 said that they watched educational television. Find the 90% confidence interval of the true proportion of people who watched educational television. If the television company wanted to publicize the proportion of viewers, do you think it should use the 90% confidence interval?

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QUESTION:

Problem 10E

Educational TelevisionIn a sample of 200 people, 154 said that they watched educational television. Find the 90% confidence interval of the true proportion of people who watched educational television. If the television company wanted to publicize the proportion of viewers, do you think it should use the 90% confidence interval?

ANSWER:

Answer

Step 1 of 1

(a)

We are asked to find the 90% CI of the true proportion of people who watched educational television.

We have given

The sample proportion can be found by following,

Where  is a number of successes in the event and  is the number of the sample.

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