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Math · Statistics And Probability
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Chapter 6, Section 1-CI, Exercise 012 Use the normal distribution to find a confidence interval for a proportion p given the relevant sample results. Give the best point estimate for p, the margin of error, and the confidence interval. Assume the results come from a random sample A 90% confidence interval for p given that p-0.75 and n-120. Round your answer for the point estimate to two decimal places, and your answers for the margin of error and the confidence interval to three decimal places Point estimate Margin of error- The 90% confidence interval is toChapter 6, Section 1-CI, Exercise 013 Use the normal distribution to find a confidence interval for a proportion p given the relevant sample results. Give the best point estimate for p, the margin of error, and the confidence interval. Assume the results come from a random sample A 90% confidence interval for the proportion who will answer Yes to a question, given that 60 answered yes in a random sample of 80 people. Round your answers to three decimal places. Point estimate- Margin of error The 90% confidence interval is toChapter 6, Section 1-CI, Exercise 017 What sample size is needed to give a margin of error within ± % n estimating a population proportion with 9 is about 0.3. confidence? We estimate that the population proportion Round your answer up to the nearest integer. Sample size- the absolute tolerance is +/-2

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