Which of the following statements are true? I. The sampling distribution of a has standard deviation even if the population is not normally Vn distributed. II. The sampling distribution of is normal if the population has a normal distribution. III. When n is large, the sampling distribution of a is approximately normal even if the the population is not normally distributed. O l and II O l and III O Il and II OI, II, and III O None of the above gives the complete set of true responses.

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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Which of the following statements are true?
I. The sampling distribution of a has standard deviation
even if the population is not normally
distributed.
II. The sampling distribution of x is normal if the population has a normal distribution.
III. When n is large, the sampling distribution of a is approximately normal even if the the
population is not normally distributed.
Ol and II
O I and II
O Il and II
O I, II, and II
O None of the above gives the complete set of true responses.
Transcribed Image Text:Which of the following statements are true? I. The sampling distribution of a has standard deviation even if the population is not normally distributed. II. The sampling distribution of x is normal if the population has a normal distribution. III. When n is large, the sampling distribution of a is approximately normal even if the the population is not normally distributed. Ol and II O I and II O Il and II O I, II, and II O None of the above gives the complete set of true responses.
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