"Inl statistical inference proper, the model is never questioned. . . . The methods of mathematical statistics do not provide us with a means of specifying the model." 1 Few would question the profundity of the above quotes. ...

The standard F test for linear restrictions in regression is relevant as a criterion but fails to capture the notion of tradeoff between bias and variance. Average squared distance criteria yield operational tests that are ...

Tables of critical points for the noncentral F are presented with noncentrality equal to 1/2 of numerator degrees of freedom for denominator degrees of freedom of 1-30, 40, 60, 120, 200, 400, and 1,000, and numerator degrees ...