Assuming that the population standard deviation is given as8.5. The sample statistics are n=20 and mean = 30.5. Then,the resulting 90% confidence interval for population meanis:O a. 26.77 <μ< 34.23O b. 25.60 μ< 35.40O c. 28.07 < μ< 32.93O d. 27.37 < μ< 33.63

Sample size=20 C.I=90% ?=1-C.I=1-0.90=0.10

Answered: Assuming that the population standard…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

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Problem 1P

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Assuming that the population standard deviation is given as 8.5. The sample statistics are n=20 and mean = 30.5. Then, the resulting 90% confidence interval for population mean is: O a. 26.77 < p < 34.23 O b. 25.60 < p < 35.40 O c. 28.07 <μ< 32.93 O d. 27.37 < p < 33.63