S Suppose That You Have Estimated the Difference Between Two $p _ { 1 } - p _ { 2 }$

question 8

Essay

S Suppose that you have estimated the difference between two population proportions, $p _ { 1 } - p _ { 2 }$ , using a confidence interval. What are the appropriate interpretations of the following results?
a) Both endpoints of the confidence interval for $p _ { 1 } - p _ { 2 }$ are positive.







b) Both endpoints of the confidence interval for $p _ { 1 } - p _ { 2 }$ are negative. c) Zero is included in the confidence interval.

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