Suppose a 95% confidence level has a value of tα/2 = 2.018. What sample size was...
Suppose a 95% confidence level has a value of tα/2 = 2.018. What sample size was used in generating this confidence interval?
A. 41
B. 43
C. 4
D. 5
E. 42
F. None of these
Homework Answers
At 42 degrees of freedom:
P(t(42) < 2.018) = 0.025
Hence,
Sample size required = df + 1 = 42 + 1 = 43
Option B is correct.
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