Unformatted text preview: (4.) (4 points) You are performing the following hypothesis test regarding squirrel
weights at an a=0.05: Ho: u = 3 pounds
H1: pi 3 pounds and correctly ﬁnd a test statistic of 2.03 and a critical values of 1.96 and l .96. Please
draw a complete conclusion for this hypothesis test. Reject the null hypothesis, data indicate the mean squirrel weight in pounds is less than 3
pounds. Note that when you reject a two sided alternative, go ahead and draw the one—
tailed conclusion based on the tail of the distribution in which your test statistics fell. (5.) (4 points) You are correctly performing the following hypothesis test involving the
tree height variances (it?) of two populations of trees. Group 1 is a population of trees in
the northern part of Wisconsin whereas Group 2 is population of trees in southern
Wisconsin H02621=622
H11621> 622
0L=0.05 and correctly ﬁnd a pvalue of 0.3333. Please draw a complete conclusion for this
hypothesis test. Fail to reject the null lg/pothesis, not enough evidence to conclude the variance in tree
height for trees in northern Wisconsin exceeds that of trees in southern Wisconsin. ...
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 Spring '07
 DORUSKA

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