Question
1-a Use the normal distribution to find a confidence interval for a difference in proportions p1p2p1-p2 given the relevant sample results. Assume the results come
1-a
Use the normal distribution to find a confidence interval for a difference in proportions p1p2p1-p2 given the relevant sample results. Assume the results come from random samples.
A 90% confidence interval for p1p2p1-p2 given that p^1=0.71p^1=0.71 with n1=600n1=600 and p^2=0.67p^2=0.67 with n2=390n2=390 Give the best estimate for p1p2p1-p2, the margin of error, and the confidence interval. Round your answer for the best estimate to two decimal places and round your answers for the margin of error and the confidence interval to three decimal places. Best estimate: The margin of error: Confidence interval :
1-b.
A 99% confidence interval for p1p2p1-p2 given that p^1=0.25p^1=0.25 with n1=40n1=40 and p^2=0.40p^2=0.40 with n2=100n2=100 Give the best estimate for p1p2p1-p2, the margin of error, and the confidence interval. Round your answer for the best estimate to two decimal places and round your answers for the margin of error and the confidence interval to three decimal places. Best estimate: The margin of error : Confidence interval :
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