A Simplified Approach for Two-Dimensional Optimal Controlled Sampling Designs

Table 13

Basic data for the 3 × 3 population.

	𝑛𝑎𝑖𝑗			Total		𝑌𝑖𝑗			Total
	0.8	0.5	0.7	2.0		5.6	3.0	6.3	14.9
	0.7	0.8	0.5	2.0		4.2	3.2	4.0	11.4
	0.5	0.7	0.8	2.0		1.5	3.5	5.6	10.6
Total	2.0	2.0	2.0	6.0	Total	11.3	9.7	15.9	36.9