Optimum Stratification Using Dynamic Programming with a Mixture of Ratio and Product Estimators under Super Population Model

Table 2

Optimum strata boundaries, sample size, and total variance for gamma distributed auxiliary variables.

L (no. of strata)	OSB	(sample size)	Total variance
2	6.7495	195	3.2544
		105
3	5.7664; 9.7621	135	3.0827
		119
		46
4	4.6904; 8.3862; 12.9146	99	2.9811
		103
		78
		20
5	4.1198; 7.6971; 11.2892; 14.7314	76	2.0572
		92
		69
		41
		22
6	6.5385; 9.3508; 16.2272; 19.0509; 23.9069	72	1.7821
		87
		82
		42
		32
		17