A simple random sample of size \( n = 19 \) is drawn from a population that is normally distributed with \( \sigma = 21 \). The sample mean is found to be \( \bar{x} = 65 \).Construct a 90% confidence interval for the population mean. Round your answers to two decimal places.Confidence interval: [ \_\_\_ , \_\_\_ ]

Answer - The sample size n = 19, X~N(μ, σ) Where σ =21 and x = 65…

Answered: A simple random sample of size n = 19…

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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A simple random sample of size n = 19 is drawn from a population that is normally distributed with o = 21. The sample mean is found to be z = 65. Construct a 90 % confidence interval for the population mean. Round your answers to two decimal places. Confidence interval: