Which of the following will have the smallest margin of error? Note that n denotes the sample size. options: n = 1000 with 90% confidence   n = 100 with 90% confidence   n = 100 with 99% confidence   n = 1000 with 99% confidence

Use the given confidence interval to find the margin of error and the sample mean. (71.7, 87.3)

Use the confidence interval to find the margin of error and the sample mean. (0.614,0.690)     The margin of error is   The sample mean is

Private Four-Year Colleges From the data in CollegeScores4yr we know that about 62% of four-year colleges in the US are private institutions. Suppose that we select samples of n = 75 schools at a time from the population of all four-year colleges and find the proportion of private schools in each sample. (a) Consider the distribution of these sample proportions when n = 75 and p = 0.62. What is its form? Center = i Standard error = (round to three decimal places) (b) What proportion of these samples will have less than 50% private schools? Round to three decimal places. i

Subject - account  Please help me.  Thankyou.

Use the given confidence interval to find the margin of error and the sample mean.  (4.81, 8.09)

Construct the Confidence Interval for the proportion.In a survey of 2480 golfers, 372 said they were left-handed. Construct a 92% confidence interval for the proportion of left-handed golfers from this sample.

Answer+ 14. For each of the following three sample sizes, construct the 95% confidence interval for the population proportion. Use a sample proportion of 0.40 throughout. What happens to interval width as sample size increases? Why? P = 0.40 Sample A: N= 100 Sample B: N 1000 Sample C: N= 10,000 7.15. PS Two individuals are running for mayor of a large city. You conduct an election survey a week before the election and find that 51% of the respondents prefer candidate A. Can you predict a winner? Use the 99% level. (HINT: In a two-candidate race, what percentage of the vote would the winner need? Does the confidence interval indicate that candidate A has a sure margin of victory? 72°F 409 4. 141 44 Insert 96 4 G.