1) 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 = 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 error+- The 99% confidence interval 2) What Percent of US Adults Say They Never Exercise? In a survey of 1000 US adults, twenty percent say they never exercise. This is the highest level seen in five years.? Find a 90% confidence interval for the proportion of US adults who say they never exercise. Round your answers to three decimal places. The 90% confidence interval is? to