(Under the assumption of normality, one would expect approximately 5%, or approximately 3, of the values to fall outside 1
(Under the assumption of normality, one would expect approximately 5%, or approximately 3, of the values to fall outside 1.96 standard deviations of the mean). overall variance in the ED50 values for the in-house reference standard from 55 impartial estimates performed over the period of one 12 months was 12.3% of the average. Excellent intra-plate…