An actuary is interested in estimating the proportion of young adults who plan to have children someday she takes an SRS of 60 young adults and finds that 48 of them plan to have children construct A 99% confidence interval for the proportion of young adults who plan to have children someday

A research poll of 1501 adults showed that 1051 of respondents believe in global warming. Find a 98% confidence interval estimate for the proportion of adults that believe in global warming. Based on these results, can we safely conclude that the majority of adults believe in global warming and why?

What is the lower endpoint of a 95% confidence interval for the percent of students who like online classes if for a sample of 134 students 92 students liked online classes? C e M AD ►

In a random sample of 250 high school students, it was found that 85.2% (213) of them later graduated. Find the 95% and 98% confidence interval for the true proportion of all high school students who graduate. Compare the two proportions.

Find a 90% confidence interval for the true proportion of people that eat frog legs, if in a sample of 732 people 65% eat frog legs.

Assume a nationwide random survey of 800 adults asked about attitudes toward “alternative medicine” such as acupuncture, massage therapy, and herbal therapy. Among the respondents, 448 said they would use alternative medicine if traditional medicine was not producing the results they wanted. Give a 99% confidence interval for the proportion of all adults who would use alternative medicine.

Report the​ 95% confidence interval for the percentage of all young people who earned a high school diploma.

Out of a survey of 900 adults, 567 said that teenagers were more dangerous drivers than senior citizens. Construct a 99% confidence interval for p.

Of 130 adults selected randomly from one town, 30 of them smoke. Construct a 90% confidence interval for the true percentage of all adults in the town that smoke.

you want to find out the percent of people who use an iPhone so you survey 120 random adults of whom 57 use an iPhone. what is the 95% confidence interval for P the put portion of all adults who use iPhone