Problem Statement

Standard Error of a Proportion Consider an automated execution strategy that processed 1000 independent trades: 600 long and 400 short. Of the long positions, 62% had a positive yield. Which formula correctly calculates the standard error for the proportion of successful long positions? (0.62 x 0.38) / 600 (0.62 x 0.38) / sqrt(600) sqrt((0.62 x 0.38) / 1000) sqrt((0.62 x 0.38) / 600)