37% from a sample of 3800 people are saving for retirement. Construct the confidence interval for the population proportion of people that are saving for retirement. Use a confidence level of 93% Edit View Insert Format Tools Table 12pt Paragraph ⠀ I
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- Out of a sample of 760 people, 367 own their homes. Construct a 95% confidence interval for the population mean of people in the world that own their homes.In a survey of 952 respondents, 620 of them voted in a recent election. Find a 95% confidence interval estimate for the true population proportion that voted in this election.A university dean is interested in determining the proportion of students who receive some financial aid. The dean randomly selects 200 students and finds that 118 of them are receiving financial aid. Use a 95% confidence interval to estimate the proportion of students on financial aid.
- When 302 college students are randomly selected and surveyed, it is found that 122 own a car. What is the point estimate for the 99% CI for the true proportion of all college students who own a car? Find the 99% confidence interval for the true proportion of all college students who own a carA university dean is interested in determining the proportion of students who receive some sort of financial aid. Rather than examine the records for all students, the dean randomly selects 200 students and finds that 125 of them are receiving financial aid. Use a 95% confidence interval to estimate the population proportion of students who receive financial aid.What is the upper bound of the 95% confidence interval?
- Based on a sample of 1000 adult Americans, USA Today reported that 840 of them preferred cheese on their burgers. Calculate and interpret an 88% confidence interval for the proportion of all adult Americans who prefercheese on their burgers.In a study of perception, 80 men are tested and 7 are found to have red/green color blindness. (based on data from USA Today) a. Find the point estimate of the percentage of men who have red/green color blindness. b. Find a 90% confidence interval of the percentage of all men who have colorblindness.Out of 300 people sampled, 111 had kids. Based on this, construct a 95% confidence interval for the true population proportion of people with kids. < p <
- A university dean is interested in determining the proportion of students who receive some sort of financial aid. Rather than examine the records for all students, the dean randomly selects 200 students and finds that 118 of them are receiving financial aid. Use a 90% confidence interval to estimate the true proportion of students who receive financial aid. What does this interval mean?A university dean is interested in determining the proportion of students who receive some sort of financial aid. Rather than examine the records for all students, the dean randomly selects 200 students and finds that 118 of them are receiving financial aid. Use a 95% confidence interval to estimate the true proportion of students who receive financial aid.
