What Is the 95% Confidence Interval for the Standard Deviation $0.8 < \sigma < 2.1$

question 119

Multiple Choice

What is the 95% confidence interval for the standard deviation of birth weights at County General Hospital, if the standard deviation of the last 25 babies born there was
1) 1 pounds?

• A) \(0.8 < \sigma < 2.1\)
• B) \(0.9 < \sigma < 1.5\)
• C) \(0.8 < \sigma < 1.9\)
• D) \(0.7 < \sigma < 2.3\)

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