Use a binomial distribution to represent data that consists of the number or proportion of observations that have a particular attribute. Data include samples of equal size (n) from k populations. The number of observations having the attribute of interest in each of k samples are denoted as y1, y2,… , yk. Listed below are the steps Minitab uses to compute ANOM results for data with a binomial distribution.
where n = number of observations.
where hα = inverse cumulative probability of α2 for the standard normal distribution, where α2 = 1 -α / (2 * k).
If the number of rows in your response column (k) equal 2, then α2 = 1 -α / 2