Question

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 s2 = .36.
a. Construct a 90% confidence interval estimate of the population variance for the weight of this drug.
b. Construct a 90% confidence interval estimate of the population standard deviation.


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  • CreatedSeptember 20, 2015
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