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A study on students drinking habits asks a random sample of 124"non-greek" UF students how many alcoholic beverages they haveconsumed in the past week. The samplereveals an average of 3.66alcoholic drinks, with a standard deviation of 2.82. Construct a90% confidence interval for the true average number of alcoholicdrinks all UF"non-greek" students have in a one week period.

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Answer #1
Given that A study onstudents drinking habits asks a random sample of 124(n) "non-greek"UF students how many alcoholicbeverages they have consumed in thepast week. The sample reveals an average of 3.66(x-bar) alcoholicdrinks, with a standard deviation of2.82(s).
The formula for 90% two sided confidence interval tofindthe true mean amount of porosity is given by
 = (3.2434, 4.077)
Here tα/2,n-1 =1.645[t- table value at 90% CI]
Hope this will help you
answered by: Maj
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