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The 90% Confidence Interval Estimate for a Population Standard Deviation

Question 67

Multiple Choice

The 90% confidence interval estimate for a population standard deviation when a sample variance of 50 is obtained from a sample of 15 items is

A) 4.18 to 15.07
B) 5.18 to 11.15
C) 5.44 to 10.32
D) 29.55 to 106.53

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