A population of nomally-distributed measurements has a mean u = 2.850 and standard deviation o = 0.020. A total of 40 measurements were taken in 10 samples of size n=4. A) What is the mean i of the sample means. B) What is the standard deviation s, of the sample means? C) Find the 3 standard deviation spread (or range) of measurements. D) Find the 3 standard deviation spread (or range) of sample means. E) If the parent measurements were not normally-distributed, would you expect the distribution of sample means to be normally distributed? Why or why not.

A population of nomally-distributed measurements has a mean u = 2.850 and standard deviation o = 0.020. A total of 40 measurements were taken in 10 samples of size n=4. A) What is the mean i of the sample means. B) What is the standard deviation s, of the sample means? C) Find the 3 standard deviation spread (or range) of measurements. D) Find the 3 standard deviation spread (or range) of sample means. E) If the parent measurements were not normally-distributed, would you expect the distribution of sample means to be normally distributed? Why or why not.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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A population of nomally-distributed measurements has a mean u = 2.850 and standard
deviation o = 0.020. A total of 40 measurements were taken in 10 samples of size n=4.
A) What is the mean i of the sample means.
B) What is the standard deviation s, of the sample means?
C) Find the 3 standard deviation spread (or range) of measurements.
D) Find the 3 standard deviation spread (or range) of sample means.
E)
If the parent measurements were not normally-distributed, would you expect the
distribution of sample means to be normally distributed? Why or why not.
+ A)
+ B)
+ C)
+ D)

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