Formulas: 9-6-1-6

Formula 1

for $i=1, \ldots, n$ where $\mathrm{SR}_{i}$ is the standardized residual from Equation 9.6.1.5(k), RMSE is the root mean square error based on the entire sample as calculated in either Equation 9.6.1.5(e) or Equation 9.6.1.5(i), and RMSE(i) is the root mean square error based on the sample which excludes the ith obser