The body mass index (BMI) was measured in 1200 randomly selected adults, with the results shown in the table.   BMI       under 18.5 18.5 - 25 over 25 Men 36 165 315 Women 75 274 335 a. Give a point estimate for the proportion of all men whose BMI is over 25. b. Assuming the sample is sufficiently large, construct a 99% confidence interval for the proportion of all men whose BMI is over 25. c. Give a point estimate for the proportion of all adults, regardless of gender, whose BMI is over 25. d. Assuming the sample is sufficiently large, construct a 99% confidence interval for the proportion of all adults, regardless of gender, whose BMI is over 25.

Construct the confidence interval for the population mean u .c​=.98, x=6.4, o=0.7, n = 40

In a study of government financial aid for college students, it becomes necessary to estimate the percentage of full-time college students who earn a bachelor's degree in four years or less. Find the sample size needed to estimate that percentage. Use a 0.04 margin of error and use a confidence level of 95%. Complete parts (a) through (c) below. a. Assume that nothing is known about the percentage to be estimated. n= (Round up to the nearest integer.) b. Assume prior studies have shown that about 55% of full-time students earn bachelor's degrees in four years or less. n= (Round up to the nearest integer.) c. Does the added knowledge in part (b) have much of an effect on the sample size? O A. No, using the additional survey information from part (b) does not change the sample size. O B. Yes, using the additional survey information from part (b) dramatically reduces the sample size. Oc. Yes, using the additional survey information from part (b) only slightly increases the sample size. O…

In a study of government financial aid for college students, it becomes necessary to estimate the percentage of full-time college students who earn a bachelor's degree in four years or less. Find the sample size needed to estimate that percentage. Use a 0.04 margin of error and use a confidence level of 90%. Complete parts (a) through (c) below. a. Assume that nothing is known about the percentage to be estimated. C n: (Round up to the nearest integer.) b. Assume prior studies have shown that about 40% of full-time students earn bachelor's degrees in four years or less. (Round up to the nearest integer.) c. Does the added knowledge in part (b) have much of an effect on the sample size? O A. No, using the additional survey information from part (b) only slightly reduces the sample size. O B. Yes, using the additional survey information from part (b) dramatically reduces the sample size. O C. Yes, using the additional survey information from part (b) only slightly increases the sample…

I only need part B

If X=101, o=27, and n= 32, construct a 95% confidence interval estimate of the population mean, p

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= 1004 and x = 575 who said "yes." Use a 90% confidence level. E 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.)

In a study of government financial aid for college students, it becomes necessary to estimate the percentage of full-time college students who earn a bachelor's degree in four years or less. Find the sample size needed to estimate that percentage. Use a 0.04 margin of error and use a confidence level of 99%. Complete parts (a) through (c) below. a. Assume that nothing is known about the percentage to be estimated. n = (Round up to the nearest integer.) b. Assume prior studies have shown that about 60% of full-time students earn bachelor's degrees in four years or less. n = (Round up to the nearest integer.) c. Does the added knowledge in part (b) have much of an effect on the sample size? O A. No, using the additional survey information from part (b) only slightly reduces the sample size. B. Yes, using the additional survey information from part (b) only slightly increases the sample size. C. No, using the additional survey information from part (b) does not change the sample size. O…

In a study of government financial aid for college​ students, it becomes necessary to estimate the percentage of​ full-time college students who earn a​ bachelor's degree in four years or less. Find the sample size needed to estimate that percentage. Use a 0.01 margin of error and use a confidence level of 90​%. Complete parts​ (a) through​ (c) below. a. Assume that nothing is known about the percentage to be estimated.   n=nothing ​(Round up to the nearest​ integer.) b. Assume prior studies have shown that about 45​% of​ full-time students earn​ bachelor's degrees in four years or less.   n=nothing ​(Round up to the nearest​ integer.) c. Does the added knowledge in part​ (b) have much of an effect on the sample​ size?   A. yes, using the additional survey info from part b dramatically reduces the sample size   B. no, using the additional survey info from part b only slightly reduces the sample size   C. yes, using the additional survey info from part b only slightly…

Researchers studied the mean egg length (in millimeters) for a bird population. After taking a random sample of eggs, they obtained a 95% confidence interval of (45,60). What is the value of the margin of error? Choose the correct answer below. A. 15 mm B. 52.5 mm O c. 7.5 mm O D. 1.96