User:Nick Mulgan/sandbox

The maxSPRT is not agreed as the most efficient extension of SPRT to composite hypotheses median = Failed to parse (unknown function "\begin{matrix}"): {\displaystyle \begin{matrix}I_{\frac{1}{2}}^{[-1]}(\alpha,\beta)(c-a) + a \text{ where } I_{\frac{1}{2}}^{[-1]}(\alpha,\beta) is the 50th percentile of the [[Beta function#Incomplete beta function|regularised incomplete beta function]]\\ \approx \frac{7 a - 6 b - c}{7 a -12 b + 5 c}\end{matrix}}