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 = 0.75 and n = 110. 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 = i Margin of error = + i The 99% confidence interval is i to i

Use a t-distribution to find a confidence interval for the difference in means µå = µ₁ − µ2 using the relevant sample results from paired data. Assume the results come from random samples from populations that are approximately normally distributed, and that differences are computed using d = X1 X₂. A 95% confidence interval for μ using the paired data in the following table: Situation 1 Give the best estimate for Ma Case 1 2 3 4 5 6 7 8 77 79 95 62 71 72 85 91 Situation 2 86 85 89 77 78 60 87 92 the margin of error, and the confidence interval. Enter the exact answer for the best estimate, and round your answers for the margin of error and the confidence interval to two decimal places.

Use the confidence interval to find the margin of error and the sample mean. (0.614,0.690)     The margin of error is   The sample mean is

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 95% confidence interval for the proportion who will answer "Yes" toaquestion, given that 64 answered yes in a random sample of 90 people. Round your answers to three decimal places. Point estimate3 Margin of error = The 95% confidence interval is to