Construct a 90 confidence interval estimate of the

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Reference no: EM13605437

The Variance in drug weights is critical in the pharmaceutical industry. For a specific drug, with weights measured in grams, a sample of 18 units provided a sample variance of s^2=.36.

a. Construct a 90% confidence interval estimate of the populatiion variance for the weight of this drug.

b. Construct a 90% confidence interval estimate of the population standard deviation.

Please explain how to do these, I've searched throuh my book with no luck.

Reference no: EM13605437

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