A Better Trapazoid Fit For the Equinox Time Deviations
The trapazoidal distribution fit for MICA's Spring Equinox time deviations proved to be a little difficult. The b values were difficult to fit since they favored lower values at the expense of large z-scores for the last interval of the histogram. I tried minimizing the maximum absolute value of the z-scores while minimizing the rms error and got what appears to be a better fit.
Here are some statistics for the fit.
Judging by the z-scores its a marginal trapazoidal distribution at best.