The dean of student activities wants to estimate the average spending on beer per week by a
Question:
The dean of student activities wants to estimate the average spending on beer per week by a student. From a previous study, the standard deviation of spending was estimated to be $39. If the dean wants to control the 90 %
confidence interval within ±$5, how many students should he survey?
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Related Book For
Statistics For Business And Financial Economics
ISBN: 9781461458975
3rd Edition
Authors: Cheng Few Lee , John C Lee , Alice C Lee
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