BUSINESS MANAGEMENT Midterm: A market research company wishes to know how many energy drinks teenagers drink each week

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A market research company wishes to know how many energy drinks teenagers drink each week. They want to construct an 85% con dence interval with an error of no more than 0. 08. A consultant has informed them that a previous study found the mean to be 6 energy drinks per week and found the standard deviation to be 1. 2. Round your answer up to the next integer. The minimum sample size required to create the specified confidence interval is 466. Here is the explanation of how i got the 466. We have that to find our level, that is the subtraction of 1 by the confidence interval divided by 2. Now, we have to find z in the z table as such z has a pvalue of 1- . So it is z with a pvalue = 1 - 0. 075. Now, find the margin of error m as such:

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