Department of Statistics

  University of Joensuu

In case you are wondering:

The picture depicts the actual coverage probability (= y-axis) of mid-P based confidence intervals for the binomial parameter p (= x-axis).
The model is X ~ Bin(2,p), and the nominal confidence level is 2/3. The red area shows the discrepancy between the nominal and the actual.
(N.B. Red and black are the heraldic colors of North Carelia.)

• Department of Statistics