A simple random sample of sizen is drawn from a population that is known to be normally distributed. The sample variance, s, is determined to be 13.3. Complete parts (a) through (c). (a) Construct a 90% confidence interval for o? if the sample size, n, is 20. The lower bound is 8.38. (Round to two decimal places as needed.) The upper bound is 24.98 . (Round to two decimal places as needed.) (b) Construct a 90% confidence interval for o? if the sample size, n, is 30. The lower bound is (Round to two decimal places as needed.)

A simple random sample of sizen is drawn from a population that is known to be normally distributed. The sample variance, s, is determined to be 13.3. Complete parts (a) through (c). (a) Construct a 90% confidence interval for o? if the sample size, n, is 20. The lower bound is 8.38. (Round to two decimal places as needed.) The upper bound is 24.98 . (Round to two decimal places as needed.) (b) Construct a 90% confidence interval for o? if the sample size, n, is 30. The lower bound is (Round to two decimal places as needed.)

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Description: A simple random sample of size n is drawn from a population that is known to be normally distributed. The sample variance, s“, is determined to be 13.3. Completeparts (a) through (c).(a) Construct a 90% confidence interval for o if the sample size,

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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