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#7 and #8
0.4 pts Question 7 In a normal distribution with μ for samples of size 25. 14 and σ-2, find the mean of the distribution of sample means 0.4 pts Question 8 In a normal distribution with μ=12 and σ=0.75, find the standard deviation of the distribution of sample means for samples of size 64. (Round to the nearest ten-thousandth.)
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Answer #1

7. Solution :

=> Answer :- 14

Given that n = 25 , μ = 14 and σ = 2

=> the mean of the sampling distribution of the mean is μm = μ

= 14

8. Solution :

=> Answer :-  0.0938

Given that n = 64 , μ = 12 and σ = 0.75

=> the standard deviation of the sampling distribution of the mean is σm = σ/sqrt(n)

= 0.75/sqrt(64)

= 0.0938

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