Which of the following statements is most nearly correct, other things being equal?
A) If n ≥ 30 a sample mean is within 5% of the true mean.
B) Critical values of z and t are about the same when the mean is large.
C) Quadrupling the sample size roughly halves the standard error of the mean.
D) All of the above statements are generally true.
RES / 341 RES/341 RES341 RES 341 QUIZ # 3
(Chapters 2+8 from Applied Statistics in Business and Economics )
To View all the Questions covered : 4 sets of RES341 Final
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