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4434CellSim.xls
http://www.merlot.org/merlot/viewMaterial.htm?id=79093
This is a discrete event simulation program on a Microsoft Excel spreadsheet. It operates through a Macro written in Visual Basic. There are two basic elements: Machines and Storage Areas. Machines can have many different processes, changeover times, etc. Probability distributions of processing time, failures, and defective items are quite flexible. Detailed instructions are included.Free Software
http://www.merlot.org/merlot/viewMaterial.htm?id=242448
This collection of macros for Microsoft Excel addresses numerous topics like decision trees, the Central Limit Theorem, queueing, critical path analysis, regression with prediction intervals, and recognizing departures from normality.PredInt.xls
http://www.merlot.org/merlot/viewMaterial.htm?id=80781
Regression analysis can be used to make forecasts. Prediction intervals put confidence intervals around a forecast. Microsoft Excel's statistical tool pack does not do this. I wrote a macro in Visual Basic to do multiple regression with interactive prediction intervals, meaning that the intervals are automatically recalculated whenever you change the value of a predictor (independent) variable, or the confidence level. The macro also produces scatter plots and a normal probability plot. (Excel's normal probability plot is incorrect.)DecisionTree.xls
http://www.merlot.org/merlot/viewMaterial.htm?id=80787
Constructs a decision tree and indicates the optimal choices. Includes two kinds of branches: probability and choice.Excel 2007 compatible Prediction Intervals for Excel
http://www.merlot.org/merlot/viewMaterial.htm?id=274491
NOW COMPATIBLE WITH EXCEL 2007 AND EXCEL 2003.The Regression tool in Excel's Data Analysis tool package does not calculate prediction intervals. The PredInt 2008-2003.xls spreadsheet contains a macro to do that. Features include a Normal Probability Plot, residual plots, line-fit plots, and standardized residuals that match the ones calculated in most commercial statistics packages (Excel's program calculates them differently). Outliers and influential observations are also flagged.Queue.xls
http://www.merlot.org/merlot/viewMaterial.htm?id=80783
Teaches Queuing to and a little Simulation, using a Visual Basic macro in a Microsoft Excel spreadsheet. Contains three analytical queuing models, plus a worksheet linked to a Visual Basic macro that runs a simulation of a single-stage, multi-server, finite-capacity queue. Service times and inter-arrival times are very flexible, modeled by the Gamma distribution, which includes Exponential as a special case.