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A candy maker produces Christmas mints that have a label weight of 20.4 grams. F

ID: 3389270 • Letter: A

Question

A candy maker produces Christmas mints that have a label weight of 20.4 grams. For quality assurance, n1 = 20 mints were selected at random from the Wednesday morning shift and weighed. On Wednesday afternoon, n2 = 16 mints were selected at random and weighed Construct a 90% confidence interval for 2 /1 , the ratio of standard deviations of the mints produced by the afternoon and by the morning shifts, respectively. A candy maker produces Christmas mints that have a label weight of 20.4 grams. For quality assurance, n1 = 20 mints were selected at random from the Wednesday morning shift and weighed. On Wednesday afternoon, n2 = 16 mints were selected at random and weighed Construct a 90% confidence interval for 2 /1 , the ratio of standard deviations of the mints produced by the afternoon and by the morning shifts, respectively. A candy maker produces Christmas mints that have a label weight of 20.4 grams. For quality assurance, n1 = 20 mints were selected at random from the Wednesday morning shift and weighed. On Wednesday afternoon, n2 = 16 mints were selected at random and weighed Construct a 90% confidence interval for 2 /1 , the ratio of standard deviations of the mints produced by the afternoon and by the morning shifts, respectively.

Explanation / Answer

A candy maker produces Christmas mints that have a label weight of 20.4 grams. F