For a 99% confidence interval of the population mean based on a sample of n = 25 with s = 0.05, the critical value of t is:
A. 2.7969
B. 2.7874
C. 2.4922
D. 2.4851
Analysis:
A. Correct. The critical value of t is 2.7969
B. Incorrect. The critical value of t is 2.7969
C. Incorrect. The critical value of t is 2.7969
D. Incorrect. The critical value of t is 2.7969
ANSWER : A
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