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Educational TelevisionIn a sample of 200 people, 154 said
Chapter 7, Problem 10E(choose chapter or problem)
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?
Questions & Answers
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.