The variance in drug weights is critical in the pharmaceutical industry. For a specific drug, with...

The variance in drug weights is critical in the pharmaceutical industry. For a specific drug, with weights measured in grams, a sample of 20 units provided a sample variance of s^2 = 0.49.

a) construct a 90% confidence interval estimate for the population variance

b) construct a 90% confidence interval estimate of the population standard deviation

Expert Solution

milcah answered 1 year ago

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