Given a Sample Mean of 12

question 34

Multiple Choice

Given a sample mean of 12.5-drawn from a normal population, a sample of size 25, and a sample variance of 2.4-find a 99% confidence interval for the population mean.

• A) [11.7019, 13.2981]
• B) [11.1574, 13.8426]
• C) [11.6334, 13.3666]
• D) [11.7279, 13.2721]

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