A wildlife biologist is studying the prevalence of rabies in
skunk populations in two different counties, with the following
She wants to test the hypothesis that the proportions in the two
counties differ, and sets her Type I error to ? = 0.05. If our
biologist is going to use the two-sample z test, what does she use
for a critical value?
(a) 1.645 (b) 1.96 (c) +1.645 (d) 2.81 (e) ?1.96
county rabid, y sample size, n 125 200 Bigfoot 40 Jackalope 72
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