Assuming the Normal distribution and the problem of
estimating Cp ¼ 1, we observed large biases when n ¼ f3; 5g.
The various estimators are slightly biased when n > 5 and
m ¼ 10, with values of RB around 0:5% in this situation.
The performance of the various estimators is similar when
m–10, but the biases approaches 0 as m increases. The values
of RB of the estimator b Cp:R2 are slightly larger than the alternative
values of RB, specially for small values of m