Suppose that you have estimated the difference between two population proportions, , using a confidence interval. What are the appropriate interpretations of thefollowing results?
a) Both endpoints of the confidence interval for are positive.
b) Both endpoints of the confidence interval for are negative.
c) Zero is included in the confidence interval.

Question

Suppose that you have estimated the difference between two population proportions,  , using a confidence interval. What are the appropriate interpretations of thefollowing results?
a) Both endpoints of the confidence interval for  are positive.
b) Both endpoints of the confidence interval for  are negative.
c) Zero is included in the confidence interval.

Quizplus · Accepted Answer

The Answer is a) A difference of 0 in population proportions is not a plausible value, and p₁>p₂ .

b) A difference of 0 in population proportions is not a plausible value, and p₁< p₂.
c) A difference of 0 in population proportions is a plausible value.It is possible that p₁=p₂ .

Suppose That You Have Estimated the Difference Between Two Population