Confidence interval for standard deviation of birth weights

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Reference no: EM13157628

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. 0.7

b. 0.9

c. 0.8

d. 0.8

Reference no: EM13157628

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