Mathematics, 05.05.2020 19:40 ashuntihouston14
A manufacturer of cookies and crackers does a small survery of the age at sale of one of its brands. A tandom sample of 225 retail markets in a particular region is chosen. In each store, the number of days since manufacture of the frontmost box of crackers is determined by date code on the box. The samples mean is 56.7 and the standard deviation is 30. Can we infer at the 10% significance level that the true mean age is less than 60?
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A manufacturer of cookies and crackers does a small survery of the age at sale of one of its brands....
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