A confidence interval for a population mean has a margin of error of 2.2.a. Determine the length of the confidence interval.b. If the sample mean is 51.7, obtain the confidence interval.c. Construct a graph that illustrates your results.a. The length of the confidence interval is.(Type an integer or a decimal. Do not round.)

Answered: A confidence interval for a population…

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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K You are given the sample mean and the population standard deviation. Use this information to construct the 90% and 95% confidence intervals for the population mean. Interpret the results and compare the widths of the confidence intervals. If convenient, use technology to construct the confidence intervals. A random sample of 35 home theater systems has a mean price of $131.00. Assume the population standard deviation is $15.50. Construct a 90% confidence interval for the population mean. The 90% confidence interval is (). (Round to two decimal places as needed.) W
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A confidence interval for a population mean has a margin of error of 2.2. a. Determine the length of the confidence interval. b. If the sample mean is 52.7, obtain the confidence interval. c. Construct a graph that illustrates your results. a. The length of the confidence interval is. (Type an integer or a decimal. Do not round.) b. The confidence interval for μ is from to. (Type integers or decimals. Do not round.) c. Choose the correct graph below. O A. O C. 48 Confidence Interval CI M G -C... O B. O D. CI H Confidence Interval EE 55 Q G B
Pls help ASAP. Pls show all work. Pls do both of the asked questions pls i BEG.
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Quantitative Analysis Determine the confidence interval of the set of data in both columns and write your answer on the space provided. Then on the blank before each number, write: A. If the standard error in column A is greater than the standard error in column B; B. If the standard error in column B is greater than the standard error in column A; C. If the values of standard error in both columns are equal; D. If the relationships cannot be determined from the information given. Column A Column B Determine the confidence interval using 95% confidence level: 2-3. x=34 4-5. * = 36 0=2 0=5 n = 140 n = 110 Determine the confidence interval using 90% confidence level: 7-8. = 14 9-10. = 13 s = 1.45 s = 2.01 n = 15 n = 15 Find the 95% confidence interval of the proportion of x: 12-13. 14-15.x = 12 n = 39 n = 140 1. 6. 11.
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