# Economics (42)

Consumption of alcoholic beverages by young women of drinking age has been increasing in the United Kingdom, the United States, and Europe (The Wall Street Journal, February 15, 2006). Data (annual consumption in liters) consistent with the findings reported in The Wall Street Journal article are shown for a sample of 20 European young women.
76 82 199 174 97
170 222 115 131 169
164 96 118 171 0
93 0 93 110 240
Assuming the population is roughly symmetric, construct a 95% confidence interval for the mean annual consumption of alcoholic beverages by European young women (to 1 decimal).
( , )

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1. n=20, xbar= 126,
s=63.94
a=0.05, |t(0.025, df=n-1=19)|= 2.09

So 95% CI is
xbar ± t*s/√n
126 ± 2.09*63.94/√(20)
(96.1, 155.9)

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posted by Kuai
2. Thanks for all your help, I really appreciate all the time you took to help me out. And thanks for showing me step by step.

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posted by Mia
3. You're welcome.

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posted by Kuai
4. nah fam do yo own work

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posted by hoe

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