Calculate the 90% Confidence Interval for a Sample of N

question 15

Multiple Choice

Calculate the 90% confidence interval for a sample of N = 29 with a mean = 137.98 and standard deviation (s) = 26.84.

• A) 90% CI = 137.98 ± 8.47
• B) 90% CI = 137.98 ± 13.76
• C) 90% CI = 137.98 ± 6.68
• D) 90% CI = 137.98 ± 10.20

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