Intervals [Proportions) om/courses/26867/assignments/742946?module_item_id=2191134 Chapter 8: Confidence Intervals (Proportions) Progress saved Score: 1/20 1/20 answered Done Question 4 0/1 Assume that a sample is used to estimate a population proportion p. Find the 98% confidence interval for a sample of size 322 with 258 successes. Enter your answer as an open-interval (i.e., parentheses) using decimals (not percents) accurate to three decimal places. C.I. Question Help: Message instructor Submit Question 20OF O hp prt se 19 144Chapter 8: Confidence Intervals (Proportions) Score: 1/20 1/20 answered Progress saved Done Question 2 0/ Find the margin of error and 95% confidence interval for the following surveys. Round all answers to 2 decimal places. (a) A survey of 500 people finds that 45% plan to vote for Smith for governor. Margin of Error (as a percentage): Confidence Interval: 6 to (b) A survey of 1500 people finds that 54% support stricter penalties for child abuse. Margin of Error (as a percentage): Confidence Interval: 6 to Question Help: Message instructor Submit Question 20OF A O hp sort sc 112 10 fg 144 8 17 16Chapter 8: Confidence Intervals (Proportions) m/courses/26867/assignments/742946?module_item_id-2191134 Chapter 8: Confidence Intervals (Proportions) Progress saved Score: 1/20 1/20 answered Done Question 3 0/1 Assume that a sample is used to estimate a population proportion p. Find the 95% confidence interval for a sample of size 125 with 80 successes. Enter your answer as an open-interval (i.e., parentheses) using decimals (not percents) accurate to three decimal places. C.L. = Question Help: Message instructor Submit Question 20 F O hp