Statistical inference — Question 91

Original QCE Vault practice · 1 mark

Q91 · Practice questionSimple familiar1 mark

QUESTION 91

A population has mean 80 and standard deviation 15. For samples of size 25, the sample mean has mean and standard deviation

(A)

80

and

15

(B)

80

and

3

(C)

25

and

3

(D)

80

and

0.6

ABCD

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Statistical inference — Question 91

QUESTION 91

Answer B

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