A random sample of size 49 from normal population yields,mean = 21.6 and standard deviation = 16.4. The lowerbound of a 99 percent confidence interval for populationmean isO a. 15.32O b. 18.55O c. 16.89O d. 17.67

using excel we find critical value

Answered: A random sample of size 49 from normal…

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 random sample of size 49 from normal population yields, mean = 21.6 and standard deviation = 16.4. The lower bound of a 99 percent confidence interval for population mean is O a. 15.32 O b. 18.55 O c. 16.89 O d. 17.67