Sample size calculation

Let us now return to the different options proposed earlier.

Option 1. Six goats to be put on diet A, and three each on diets B and C - this option will give totals of 9, 6 and 9 goats, respectively, for the 3 groups.

Comment: Based on the analysis above mean values for B and C are likely to remain similar and the A+D mean lower than A+B. Will these numbers be sufficient to demonstrate similarity of performance?

Option	Groups
	C	A + D	B	A + B
1	9 (1,2,3)*	6 (3)	9 (1,2,3)	0
2	10 (1,2,3,4)	10 (3,4)	10 (1,2,3,4)	0
3	12 (1,2,3)	0	12 (1,2,3)	0
4	10 (1,2,3)	0	10 (1,2,3)	10 (1,2,3)

* batch numbers in which goats occur