A random sample of size 21 is selected from Normal distribution with mean 12 and unknown variance. If the sample standard deviation S is 4, then the (90.)th percentile of the sample mean is closest to: O a. 12.50 O b. 12.20 O c. 10.80 O d. 13.20 O e. 11.10
A random sample of size 21 is selected from Normal distribution with mean 12 and unknown variance. If the sample standard deviation S is 4, then the (90.)th percentile of the sample mean is closest to: O a. 12.50 O b. 12.20 O c. 10.80 O d. 13.20 O e. 11.10
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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Question
![A random sample of size 21 is
selected from Normal
distribution with mean 12 and
unknown variance. If the
sample standard deviation S
is 4, then the (90.)th
percentile of the sample
mean is closest to:
a. 12.50
O b. 12.20
O c. 10.80
O d. 13.20
O e. 11.10](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fe36f4a38-0036-4d42-8d49-bc1289b5638f%2Fe1e751f2-6c19-4964-a7fd-214249c15be2%2Fv2zsv82_processed.jpeg&w=3840&q=75)
Transcribed Image Text:A random sample of size 21 is
selected from Normal
distribution with mean 12 and
unknown variance. If the
sample standard deviation S
is 4, then the (90.)th
percentile of the sample
mean is closest to:
a. 12.50
O b. 12.20
O c. 10.80
O d. 13.20
O e. 11.10
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