If m = n, the acceptance region (5.23) can be written as max  S2 Y

0 S2 X

, 0 S2 X

S2 Y



≤

1 − C C , where S2 X = (Xi − X¯)2, S2 Y = (Yi − Y¯)2 and where C is determined by

 C 0

Bn−1,n−1(w) dw = α

2

.