Tests for independence based on Chi-square and Pearson’s were performed on the categorical data, to estimate the differences between proportions of readability of reading groups.
The resulting data was used to define the optimal position of barcodes as well as the optimal reading mode of the barcode scanner to be used for further trials.
As this experiment provided an estimate of readability of barcodes imprinted on chicken beaks and legs, it is intended to serve as a basis for sample size calculation for an ongoing live trial.