3.) The percentage of metal alloy used in metal casting is measured in 41 random selected parts. The sample standard deviation is s=0.42. Construct a 95% two-sided confidence interval for ό (variance)

A First Course in Probability (10th Edition)
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Chapter1: Combinatorial Analysis
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3.) The percentage of metal alloy used in metal casting is measured in 41 random selected parts. The sample standard deviation is s=0.42. Construct a 95% two-sided confidence interval for ό (variance)

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