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5GE myopenmath.com Express the confidence interval 41.5 % 1 5.2% in the form of a trilinear inequality. 1pt 91 98 0 Details Express the confidence
1pt 91 98 0 Details Express the confidence interval (9 % , 26 % ) in the form of p + E. F % % Submit Question myopenmath.com Suppose the condence interval (0.6358, 0.7532i represents the proportion of Skyline College students who say math is their favorite subject. a. Based on the confidence interval, is it likely 60% of Skyline College students say math is their favorite subject? [3 Yes, 0.60 is not contained in the interval 0 No, 0.60 is not contained in the interval C] Yes, all the interval values are greater than 0.60 b. Based on the confidence interval, does it appear that more than 60% of Skyline College students say math is their favorite subject? [3 Yes, 0.60 is not contained in the interval C] No, 0.60 is not contained in the interval [3 Yes, all the interval values are greater than 0.60 c. Based on the confidence interval, does it appear that fewer than 60% of Skyline College students say math is their favorite subject? [3 No, 0.60 is not contained in the interval C] Yes, all the interval values are greater than 0.60 [3 No, all the interval values are greater than 0.60 Done 8 myopenmathsom AA 0 El/ 4 pts '01 Z 98 O Details We wish to estimate what percent of adult residents in a certain county are parents. Out of 200 adult residents sampled, 42 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. [:] 82pm '01 82 ODetails If n = 18, i=33, and s = 6, construct a confidence interval at a 80% confidence level. Give your answers to one decimal place. Submit Question myopenmath.com Giving a test to a group of students, the grades and gender are summarized below Let p represent the population proportion of all female students who received a grade of A on this test. Use a 90% confidence interval to estimate p to four decimal places if possible. Chi: myopenmath.com A newsgroup is interested in constructing a 95% confidence interval for the proportion of all Americans who are in favor of a new Green initiative. Of the 523 randomly selected Americans surveyed, 436 were in favor of the initiative. Round answers to 4 decimal places where possible. a. With 95% confidence the proportion of all Americans who favor the new Green initiative is between [:] and [:]. b. If many groups of 523 randomly selected Americans were surveyed, then a different confidence interval would be produced from each group. About [:] percent of these confidence intervals will contain the true population proportion of Americans who favor the Green initiative and about [:] percent will not contain the true population proportion. Submit Question myopenmath.com You want to obtain a sample to estimate how much parents spend on their kids birthday parties. Based on previous study, you believe the population standard deviation is approximately or = 75.6 dollars. You would like to be 98% confident that your estimate is within 1 dollar(s) of average spending on the birthday parties. How many parents do you have to sample? Submit Question myopenmathcom A political candidate has asked you to conduct a poll to determine what percentage of people support him. If the candidate only wants a 0.1% margin of error at a 97.5% confidence level, what size of sample is needed? When finding the z-value, round it to four decimal places. Submit
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