Mathematics, 27.08.2019 03:30 briashia
Suppose the number of dollars spent per week on groceries is normally distributed. if the population standard deviation is 7 dollars, what minimum sample size is needed to be 90% confident that the sample mean is within 3 dollars of the true population mean?
Answers: 3
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Suppose the number of dollars spent per week on groceries is normally distributed. if the population...
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