Fig. 3: Determinants of efficient jury size.
a The most efficient jury size Nefficient could be approximated by βAcc/βTime, where βAcc and βTime are regression coefficients in ln Δ〈Accuracy〉 = βAcclnN + εAcc and ln〈T〉 = βTimeN + εTime. CV represents the coefficient of variation and R2* denotes the adjusted coefficient of determination in a regression model using Nefficient = βAcc/βTime. b–e We calculated βAcc and βTime in broader ranges of FMajor and q (b) and estimated correlation coefficients between them. The panels c and d show the exemplary results of the correlation analyses. βAcc was specifically correlated with FMajor (c), whereas βTime was exclusively correlated with q (d). These observations indicate that larger FMajor decreases Nefficient by reducing βAcc, whereas larger q decreases Nefficient by increasing βTime (e). In the panels c and d, r shows a correlation coefficient and P indicates the statistical significance in a test of the significance of the difference of the correlation coefficient.
