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[2008 CFA level 1模拟真题]Version 1 Questions-Q10

10Which of the following changes in sample size and degrees of freedom, respectively, is most likely to result in an increase in the width of the confidence interval for the population mean?

  

Sample size

Degrees of freedom

A.

Increase

Increase

B.

Increase

Decrease

C.

Decrease

Increase

D.

Decrease

Decrease

A. Answer A

B. Answer B

C. Answer C

D. Answer D

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 a

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