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Statistical inference — Question 245

Original QCE Vault practice · 1 mark

Q245 · Practice questionTechnology-freeSimple familiar1 mark

QUESTION 245

A mean confidence interval uses fixed confidence and the same standard deviation estimate. If n changes to 4n, what happens to full width?
(A)
It is halved.
(B)
It is quartered.
(C)
It is unchanged.
(D)
It is doubled.
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