welch
Returns the p-value for the Schruben initialization bias test. The test statistic f is compared against an F(3,3) distribution. The null hypothesis is no initialization bias (positive or negative, depending on which test statistic was computed). Reject H0 if the returned p-value < significance level (e.g. 0.05).
Return
the upper-tail p-value, or Double.NaN if f is NaN
Parameters
f
the computed bias test statistic (from positiveBiasTestStatistic or negativeBiasTestStatistic)