Use the normal distribution to find a confidence interval for a proportion p given the relevant sample results. Give the best pointestimate for p, the margin of error, and the confidence interval. Assume the results come from a random sample.A 99% confidence interval for the proportion of the population in Category A given that 21% of a sample of 450 are in Category A.Round your answer for the point estimate to two decimal places, and your answers for the margin of error and the confidence intervalto three decimal places.Point estimate =Margin of error = + iThe 99% confidence interval is ito i

Given that, A 99% confidence interval for the proportion of the population in Category A given that…

Answered: Use the normal distribution to find a…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Use the normal distribution to find a confidence interval for a difference in proportions p1 – P2 given the relevant sample results. Assume the results come from random samples. A 99% confidence interval for p, – P2 given counts of 19 yes out of 200 sampled for Group 1 and 32 yes out 130 sampled for Group 2 Give the best estimate for p, – p2, the margin of error, and the confidence interval. Round your answers to three decimal places. Best estimate : Margin of error: i Confidence interval : i to i
Use the normal distribution to find a confidence interval for a proportion p given the relevant sample results. Give the best point estimate for p, the margin of error, and the confidence interval. Assume the results come from a random sample. A 99% confidence interval for p given that p = 0.33 and n = 550. Round your answer for the best point estimate to two decimal places, and your answers for the margin of error and the confidence interval to three decimal places.
Tina catches a 14-pound bass. She does not know the population mean or standard deviation. So she takes a sample of five friends and they say the last bass they caught was 9, 12, 13, 10, and 10 pounds. Find the t and calculate a 95% (α = .05) confidence interval.
You are interested in finding a 95% confidence interval for the mean number of visits for physical therapy patients. The data below show the number of visits for 12 randomly selected physical therapy patients. Round answers to 3 decimal places where possible.
99% confidence; n=3100, x=1550. assume that a sample is used to estimate a population proportion p. find the margin of error E that corresponds to the given satistics and confidence level
Use the t-table or any statistical tool and report the t-score that you multiple by the standard error to form the margin of error for a 95% confidence interval for a mean with 5 observations. a. 2.132 b. 2.776 c. 2.015 d. 2.571
Beth wants to determine a 99% confidence interval for the true proportion of high school students in the area who attend their home basketball games. How large of a sample must she have to get a margin of error less than 0.04? Assume we have no prior estimate of the proportion and want a conservative choice for the sample size. n =
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
Use the confidence interval to find the margin of error and the sample mean. (0.576,0.760) The margin of error is The sample mean is
Construct the indicated confidence interval for the difference in proportions. Assume that the samples are Independent and that they have been randomly selected. A survey of randomly chosen adults found that 45% of the 231 women and 61% of the 275 men follow regular exercise programs. Construct a 95% confidence interval for the difference in the proportions of women and men who have regular exercise programs. O A. (-0.165, -0.155) OB. (0.052, 0.268 ) OC. (-0.246, -0.074) O D. (-0.267, -0.053) O E. (-0.250, -0.070 )
Pulse Rates (beats per minute) Males Females 85 74 81 86 75 62 95 80 48 75 56 73 63 73 69 75 50 86 89 87 54 54 61 65 81 51 77 55 77 81 87 91 51 72 87 90 63 63 57 93 74 64 38 68 58 96 64 90 66 55 86 79 76 67 74 81 82 58 78 74 67 59 65 57 66 65 66 97 96 69 78 73 44 86 62 78 86 58 64 76

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