Mathematics, 05.05.2020 12:46 kyasnead8189

MADD took a random sample of 25 students and asked questions about their alcohol consumption. It was found that the average amount of money spend on alcohol each week was $27 with a standard deviation of $8. We want to determine whether or not the mean alcohol expenditures of all students is less than $30. Determine the critical value(s) if ..
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