Mathematics, 04.03.2020 23:43 bxbykyah

A sheet metal firm intends to run quality control tests on the shear strength of spot welds. As a guideline for choosing a sample size, they decide to take the smallest number of observations for which there is at least a 95% chance that the ratio of the sample variance to the true variance will be less than 2. Find the minimum n.

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A sheet metal firm intends to run quality control tests on the shear strength of spot welds. As a gu...

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