Calculate the 95% Confidence Interval for a Sample of N

question 108

Multiple Choice

Calculate the 95% confidence interval for a sample of N = 30 with a mean = 249.60 and a population standard deviation (σ) = 50.00.

• A) 95% CI = 249.60 ± 23.56
• B) 95% CI = 249.60 ± 15.06
• C) 95% CI = 249.60 ± 17.89
• D) 95% CI = 249.60 ± 11.09

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