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QUESTiON 31 For a population with µ = 60 and σ = 20, the distribution of...

QUESTiON 31

For a population with µ = 60 and σ = 20, the distribution of sample means based on n = 25 will have an expected value of ____ and a standard error of ____.​

A. 60, 25

B. 60, 4

C. 60, 20

D. 20, 4

PLEASE SHOW WORK

Math   Statistics-And-Probability   
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Homework Answers

Answer #1

Solution :

Given that ,

mean = = 60

standard deviation = = 20

n = 25

= = 60

and

= / n = 20 / 25 = 4

Option B is correct

Answer is  60, 4

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