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Question 4 We wish to estimate what percent of adult residents in a certain county are parents. Out of 300 adult residents sampled, 102 had kids. Based on this, construct a 95% confidence interval for the proportion, p, of adult residents who are parents in this county. Give your answers as decimals, to three places. Question Help: Video Submit Question Question 5 <p< Give your answer to Submit Question 0/1 pt 397 Details If n=390 and p (p-hat) =0.14, find the margin of error at a 95% confidence level decimals 0/1 pt 398 Details
Question 7 In a recent poll, 160 people were asked if they liked dogs, and 13% said they did. Find the margin of error of this poll, at the 90% confidence level. Give your answer to three decimals Submit Question Question 8 Give your answers to three decimals If n = 140 and p (p-hat) = 0.5, construct a 95% confidence interval. <p< Question Help: Video Submit Question Question 9 0/1 pt 398 Details <p< 0/1 pt 399 Details Question Help: Video Out of 300 people sampled, 186 had kids. Based on this, construct a 95% confidence interval for the true population proportion of people with kids. Give your answers as decimals, to three places 0/1 pt 399 Details
0/1 pt 398 Details Giving a test to a group of students, the grades and gender are summarized below Question 10 A B C Total 31 35 66 Male 3 18 10 Female 15 16 4 Total 18 34 14 Let p represent the percentage of all male students who would receive a grade of C on this test. Use a 90% confidence interval to estimate p to three decimal places. Enter your answer as a tri-linear inequality using decimals (not percents). <p< Question Help:Written Example