Mathematics
Mathematics, 25.11.2019 19:31, jaydqueen3155

Aquality inspector must verify whether a machine that packages snack foods is working correctly. the inspector will randomly select a sample of packages and weigh the amount of snack food in each. assume that the weights of food in packages filled by this machine have a standard deviation of 0.30 ounce. an estimate of the mean amount of snack food in each package must be reported with 99.6% confidence and a margin of error of no more than 0.12 ounces. what would be the minimum sample size for the number of packages the inspector must select?

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