<PRE><B>Question 1032341</B>
The measured gestation period of six wild boars in Britain yield sample data (in days): 114, 117, 122, 113, 114, 126
x-bar = 117.7 ; s = 5.24
Assuming that the population of gestation periods is normally distributed, an 80% confidence interval for the mean gestation period in days of wild boars is about -----------------------------------
A	117.7±2.0
B	117.7±2.5
C	117.7±4.3
D	117.7±2.8
E	117.7±3.2
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sample mean = 117.7
ME = 1.2816*5.24/sqrt(6) = 2.74
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Answer:: D
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Cheers,
Stan H.
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