Mathematics, 21.03.2020 09:18 eddsworldfrantic
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 99% confidence interval for P given that p^ = 0.7 and n = 140.
Determine the following. 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.
(a) Point estimate
(b) Margin of error
(c) 99% confidence interval
Answers: 3
Mathematics, 21.06.2019 14:20
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Mathematics, 21.06.2019 23:40
Me d is also an option but i couldn't get it in the picture
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