Multiple Choice
Calculate the 95% confidence interval for a sample of N = 21 with a mean = 73.51 and standard deviation (s) = 13.62.
A) 95% CI = 73.51 ± 6.20
B) 95% CI = 73.51 ± 5.12
C) 95% CI = 73.51 ± 8.45
D) 95% CI = 73.51 ± 5.06
Correct Answer:
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