(Answered) In the farmaceutic industry the variance in the weight of

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In the Farmaceutic Industry the variance in the weight of the meds is trascendental. Consider a medicament which weight is given in grams and in a sample of 18 units of this medicament, the sample variance is s2 = 0.36. Give a confidence interval of 90% to estimate the population variance and the population standard deviation from the weight of the medicament.

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