Use results on Winsor zed expected values in Chapter 2 to show that X w is a Winsor zed unbiased estimate of µ w . Argue that if Ψ is taken to be the biweight, it approximates the optimal choice for...

Use results on Winsor zed expected values in Chapter 2 to show that X
_w
is a Winsor zed unbiased estimate of µ_w.

Argue that if Ψ is taken to be the biweight, it approximates the optimal choice for under normality when observations are not too extreme.