Table 2.

Crossing points' distributions observed in PCR replicas

Plate	Number of replicates	Mean CP	SD	CV	Skewness	Kurtosis	Kolmogorov-Smirnov test
1	96	21.48	0.06	0.3%	0.1	-0.1	Normal
2	94	18.09	0.07	0.4%	1.5	5.7	Sharper than normal
3	96	20.09	0.04	0.2%	0.1	-0.3	Normal
4	96	18.13	0.10	0.5%	0.5	1.0	Normal