Consider a Data Sample Consisting of 12 Values with a Mean

question 15

Multiple Choice

Consider a data sample consisting of 12 values with a mean of 22 and standard deviation of 1.5. What is the 95% confidence interval for the variance?

• A) 0.75 < σ² < 4.32
• B) 0.87 < σ² < 2.08
• C) 1.02 < σ² < 2.87
• D) 1.13 < σ² < 6.49

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