Template:DropRates/AdjWaldP

Adjusted Wald calculation, Part 1
Usage: Used to find the p' in the Adjusted Wald calculation for an estimated binomial rate. z = z-score to use. 1.960 -> 95% margin See Template:DropRates/AdjWaldPorM for details.

This is one of two parts to the calculation process, and calculates the 'center' that the second part works out from. Some samples: 5 tries, 2 drops 95% margin is 44.3449...%, calculates: 50 tries, 20 drops 95% margin is 40.7135...%, calculates: 1000 tries, 400 drops 95% margin is 40.00383...%, calculates: