Four machines A, B, C, D are used to produce a certain kind of fabric for surgical dressing sample of size 5 with unit of 100 square meter are selected and number of flaws in each – 100 square meter are counted with the following results. Do you think that there is significant difference in the performance of a machine? (Use 5% l.o.s, F16,3,0.05 = 8.74). A (13,11,10,16,12); B(15,11,13,18,12);C(14, 10,12,13, 11); D(14,10,15,17)
