Home Internet Access In a recent year, a study found that 77% of adults ages 18–29 had internet access at home. A researcher wanted to estimate the proportion of undergraduate college students (18–29 years) with access, so she randomly sampled 186 undergraduates and found that 157 had access. Estimate the true proportion with 95% confidence. Round intermediate answers to five decimal places. Round your final answer to one decimal place. question: ___%

Ink Replay Replay 3. A survey taker randomly approached 344 individuals in the mall, hoping to ask some survey questions. Only 206 people agreed to participate. They were asked (1) their sex; (2) whether or not they exercise. The results are below. Men Women Do not exercise 16, 31.4% Do not exercise 48, 31.0% Exercise 35, 686% Exerci se" 107 690% What proportion of the men exercise? -68.6% What proportion of the women exercise? -69.0% Do the two variables (sex and whether or not someone exercises) seem to be associated? Explain. What proportion of those who exercise were women? What proportion of those who exercise were men? Do your answers d. and e. make you rethink your response to c.? Explain. Is it misleading that the two pies are the same size? Explain. D Focus

In a random sample of seven people, the mean driving distance to work was 22.5 miles and the standard deviation was 5.9 miles. Assume the population is normally distributed and use the t-distribution to find the margin of error and construct a 95% confidence interval for the population mean u. Interpret the results. Identify the margin of error. (Round to one decimal place as needed.) Construct a 95% confidence interval for the population mean. (Round to one decimal place as needed.) Interpret the results. Select the correct choice below and fill in the answer box to complete your choice. (Type an integer or a decimal. Do not round.) O A. With % confidence, it can be said that most driving distances to work (in miles) in the population are between the interval's endpoints. O B. It can be said that % of the population has a driving distance to work (in miles) that is between the interval's endpoints. OC. With % confidence, it can be said that the population mean driving distance to work…

Save Use the sample data and confidence level given below to complete parts (a) through (d). A research institute poll asked respondents if they felt vulnerable to identity theft. In the poll, n= 974 and x= 526 who said "yes." Use a 90% confidence level. Click the icon to view a table of z scores. a) Find the best point estimate of the population proportion p. (Round to three decimal places as needed.)

A teacher asks 200 volunteers to compete a survey. Responses to the question "do you own a car" (yes or no) were recorded. Please explain why this is not a binomial distribution.

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.Studies have shown that approximately 5.3% of Americans have French heritage. You want to know how accurate this percentage is with 95% confidence and a margin of error of 3%. How many Americans you should randomly select

Fear of the dark is quite common among children. However, what about adults? One polling agency released the results of a survey that asked people over 30 years old if they keep the lights on at night. Among 808 respondents, 46% indeed leave the light on when going to sleep. Part: 0 / 2 Part 1 of 2 Calculate the margin of error for this survey. Round the percentage to one decimal place. Do not round intermediate steps. %. If 46% of 808 respondents keep the lights on at night, the margin of error is

A survey was conducted that asked 963 people how many books they had read in the past year. Results indicated that x=14.7 books and s=17.8  books. Construct a 90​% confidence interval for the mean number of books people read. Interpret the interval.Construct a 90​% confidence interval for the mean number of books people read and interpret the result. Select the correct choice below and fill in the answer boxes to complete your choice.​(Use ascending order. Round to two decimal places as​ needed.)A. If repeated samples are​ taken, 90​% of them will have a sample mean between ___ and ____                                B. There is a 90​% probability that the true mean number of books read is between ____ and ___                             C. There is a 90​% confidence that the population mean number of books read is between ___ and ___