PsiTargetCI()

PsiTargetCI (cell,target_value,confidence_level, [simulation])

PsiTargetCI returns the confidence “half-interval” for the cumulative probability of the target value in a distribution of trial values for the specified uncertain function cell. This means that PsiTarget is accurate within PsiTarget +/- PsiTargetCI with a given confidence level. If the optional simulation argument does not exist, simulation = 1 is assumed.

This function is computed as: Lower: PsiTarget-PsiTargetCI, Upper: PsiTarget + PsiTargetCI.

This function together with PsiMeanCI, PsiMeanCIB, PsiStdDevCI, PsiCITrials and the newly added PsiPercentileCI, make up the confidence interval functions in Analytic Solver.

Example: PsiTargetCI (A1,7, 0.99,2) - Finds the confidence half-interval for cell A1 for the target value = 7, using a confidence level of 99% for the 2nd simulation.