Assume that you are testing a null hypotheses concerning the difference between two...

eltaco

New member
...proportions.? You are using the a=.05 level and a two-tailed test. Which of the following values could the Z-value associated with this Z-test for the significance of the difference between proportions exhibit, if the proportions are, in fact, significantly different?

a.) 0.005
b.) 0.150
c.) 0.450
d.) -1.250
e.) 2.600

Could someone tell me the answer and explain it to me? Thanks.
 
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