Done 8 myopenmath.com AA 0 Week 11: Chapter 8 - 8.3 Score: 3.8/22 3/12 answered Progress saved Done lg 46' Oil. 0 Question 9 v 41 pt '01 899 ODetails Assume that a sample is used to estimate a population proportion p. Find the 95% confidence interval for a sample of size 142 with 55 successes. Enter your answer as an open-interval (i.e., parentheses) using decimals (not percents) accurate to three decimal places. Done 8 myopenmath.com AA 0 Week 11: Chapter 8 - 8.3 Score: 3.8/22 3/12 answered Progress saved Done lg 46' Oil. 0 Question 7 v El\" 2 pts '01 8 99 0 Details Out of 500 people sampled, 180 preferred Candidate A. Based on this, estimate what proportion of the entire voting population (p) prefers Candidate A. Use a 99% confidence level, and give your answers as decimals, to three places. Clad: Done 8 myopenmathsom AA 0 E 4 pts '01 Z 99 0 Details We wish to estimate what percent of adult residents in a certain county are parents. Out of 200 adult residents sampled, 114 had kids. Based on this, construct a 90% confidence interval for the proportion p of adult residents who are parents in this county. Express your answer in tri-inequality form. Give your answers as decimals, to three places. C] E 2 pts '01 8 99 0 Details Giving a test to a group of students, the grades and gender are summarized below Let p represent the population proportion of all male students who received a grade of A on this test. Use a 80% confidence interval to estimate p to four decimal places if possible. Chi: Done 8 myopenmath.com AA 0 Week 11: Chapter 8 - 8.3 Score: 3.8/22 3/12 answered Progress saved Done lg 46' Oil. 0 Question 10 v El\" 2 pts '01 8 99 0 Details Assume that a sample is used to estimate a population proportion p. Find the 99.5% confidence interval for a sample of size 114 with 23% successes. Enter your answer as a tri-linear inequality using decimals (not percents) accurate to three decimal places. [:]

1 pt 1 99 0 Details Express the confidence interval 0.501 + 0.047 in open interval form (i.e., (0.155,0.855)). Submit