Practice Test 2.4 - (4(4 points You are performing the...

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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 p-value 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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