Mathematics, 04.12.2019 05:31 Alexis3456829
The quality control manager of a chemical company randomly sampled twenty 100-pound bags of fertilizer to estimate the variance in the pounds of the impurities. the sample variance was found to be 6.62. find a 95% confidence interval for the population variance in the pounds of impurities. state any assumption you need to make to be able to answer this problem.
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