32 
or 
Choice in the Distribution of Observations 
and f<'2/+i = 0- 
According to (13) and we find, 
- (J-{ 1 + g) 
N 
1 
1 + a 
3 + a 
a;" 
,.2j) 
1 
2i>+ 1 
1 
2ji;+ 3 
17^ + 1 
+ a 
a 
1 H- a 
1+a 1+a 
1 
1 
1 
0 1 
1 
2jo + 1 
1 
2;? + 3 
1 
o + a 
+ a 
1 + a 
1 
1 
+ a 
1 
2^ + 1 ' 2/> + 3 
+ a 
2^+ 1 
1 
2i; + 3 
+ a 
+ a 
— 1 
1 + a 
1 + a 
1 + a 
2;? + 1 ^ 2p + 3 
+ a 
2p+l 
1 
2^> + 3 
4jo — 1 
+ a 
