試卷名稱:110年 - 110 國立臺灣大學_碩士班招生考試_國家發展研究所甲、乙組:統計學(B)#100793
年份:110年
科目:統計學
2. I take a random sample survey of size n from a population that has mean 80 and
standard deviation20. How big should n be so that the sampling distribution of
has standard deviation 1?
(A)400
(B) 20
(C)Approximately 5
(D)Cannot be determined unless we know the population follows a normal
distribution.