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When Computing a 95 Percent Confidence Interval for σ² with a Sample

Question 74

Multiple Choice

When computing a 95 percent confidence interval for σ² with a sample of n = 30, what values of χ² would we use in the calculations?

A) 45.7222 and 16.0471
B) 46.9792 and 16.7908
C) 42.5569 and 17.7083
D) 43.7729 and 18.4926

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