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Preface | |
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Is This a Course in Statistics? | |
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How This Book Is Set Up | |
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The Job of the Testifying Expert | |
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About the Companion Web Site-Spreadsheet Availability | |
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Note | |
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Acknowledgments | |
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Introduction The Application of Statistics to the Measurement of Damages for Lost Profits | |
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The Three Big Statistical Ideas | |
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Variation | |
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Correlation | |
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Rejection Region or Area | |
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Introduction to the Idea of Lost Profits | |
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Calculating the Difference Between Those Revenues That Should Have Been Earned and What Was Actually Earned During the Period of Interruption | |
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Analyzing Costs and Expenses to Separate Continuing from Noncontinuing | |
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Examining Continuing Expenses Patterns for Extra Expense | |
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Computing the Actual Loss Sustained or Lost Profits | |
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Choosing a Forecasting Model | |
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Type of Interruption | |
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Length of Period of Interruption | |
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Availability of Historical Data | |
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Regularity of Sales Trends and Patterns | |
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Ease of Explanation | |
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Conventional Forecasting Models | |
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Simple Arithmetic Models | |
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More Complex Arithmetic Models | |
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Trendline and Curve-Fitting Models | |
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Seasonal Factor Models | |
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Smoothing Methods | |
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Multiple Regression Models | |
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Other Applications of Statistical Models | |
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Conclusion | |
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Notes | |
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Case Study 1-Uses of the Standard Deviation | |
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The Steps of Data Analysis | |
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Shape | |
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Spread | |
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Conclusion | |
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Notes | |
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Case Study 2-Trend and Seasonality Analysis | |
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Claim Submitted | |
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Claim Review | |
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Occupancy Percentages | |
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Trend, Seasonality, and Noise | |
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Trendline Test | |
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Cycle Testing | |
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Conclusion | |
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Note | |
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Case Study 3-An Introduction to Regression Analysis and Its Application to the Measurement of Economic Damages | |
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What Is Regression Analysis and Where Have I Seen It Before? | |
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A Brief Introduction to Simple Linear Regression | |
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I Get Good Results with Average or Median Ratios-Why Should I Switch to Regression Analysis? | |
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How Does One Perform a Regression Analysis Using Microsoft Excel? | |
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Why Does Simple Linear Regression Rarely Give Us the Right Answer, and What Can We Do about It? | |
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Should We Treat the Value Driver Annual Revenue in the Same Manner as We Have Seller's Discretionary Earnings? | |
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What Are the Meaning and Function of the Regression Tool's Summary Output' | |
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Regression Statistics | |
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Tests and Analysis of Residuals | |
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Testing the Linearity Assumption | |
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Testing the Normality Assumption | |
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Testing the Constant Variance Assumption | |
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Testing the Independence Assumption | |
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Testing the No Errors-in-Variables Assumption | |
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Testing the No Multicollinearity Assumption | |
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Conclusion | |
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Note | |
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Case Study 4-Choosing a Sales Forecasting Model: A Trial and Error Process | |
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Correlation with Industry Sales | |
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Conversion to Quarterly Data | |
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Quadratic Regression Model | |
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Problems with the Quarterly Quadratic Model | |
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Substituting a Monthly Quadratic Model | |
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Conclusion | |
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Note | |
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Case Study 5-Time Series Analysis with Seasonal Adjustment | |
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Exploratory Data Analysis | |
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Seasonal Indexes versus Dummy Variables | |
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Creation of the Optimized Seasonal Indexes | |
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Creation of the Monthly Time Series Model | |
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Creation of the Composite Model | |
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Conclusion | |
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Notes | |
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Case Study 6-Cross-Sectional Regression Combined with Seasonal Indexes to Determine Lost Profits | |
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Outline of the Case | |
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Testing for Noise in the Data | |
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Converting to Quarterly Data | |
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Optimizing Seasonal Indexes | |
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Exogenous Predictor Variable | |
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Interrupted Time Series Analysis | |
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"But For" Sales Forecast | |
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Transforming the Dependent Variable | |
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Dealing with Mitigation | |
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Computing Saved Costs and Expenses | |
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Conclusion | |
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Note | |
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Case Study 7-Measuring Differences in Pre- and Postincident Sales Using Two Sample t-Tests versus Regression Models | |
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Preliminary Tests of the Data | |
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Using the t-Test Two Sample Assuming Unequal Variances Tool | |
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Regression Approach to the Problem | |
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A New Data Set-Different Results | |
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Selecting the Appropriate Regression Model | |
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Finding the Facts Behind the Figures | |
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Conclusion | |
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Notes | |
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Case Study 8-Interrupted Time Series Analysis, Holdback Forecasting, and Variable Transformation | |
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Graph Your Data | |
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Industry Comparisons | |
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Accounting for Seasonality | |
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Accounting for Trend | |
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Accounting for Interventions | |
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Forecasting "Should Be" Sales | |
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Testing the Model | |
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Final Sales Forecast | |
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Conclusion | |
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Case Study 9-An Exercise in Cost Estimation to Determine Saved Expenses | |
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Classifying Cost Behavior | |
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An Arbitrary Classification | |
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Graph Your Data | |
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Testing the Assumption of Significance | |
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Expense Drivers | |
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Conclusion | |
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Case Study 10-Saved Expenses, Bivariate Model Inadequacy, and Multiple Regression Models | |
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Graph Your Data | |
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Regression Summary Output of the First Model | |
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Search for Other Independent Variables | |
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Regression Summary Output of the Second Model | |
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Conclusion | |
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Case Study 11-Analysis of and Modification to Opposing Experts' Reports | |
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Background Information | |
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Stipulated Facts and Data | |
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The Flaw Common to Both Experts | |
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Defendant's Expert's Report | |
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Plaintiffs Expert's Report | |
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The Modified-Exponential Growth Curve | |
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Four Damages Models | |
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Conclusion | |
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Case Study 12-Further Considerations in the Determination of Lost Profits | |
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A Review of Methods of Loss Calculation | |
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A Case Study: Dunlap Drive-in Diner | |
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Skeptical Analysis Using the Fraud Theory Approach | |
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Revenue Adjustment | |
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Officer's Compensation Adjustment | |
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Continuing Salaries and Wages (Payroll) Adjustment | |
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Rent Adjustment | |
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Employee Bonus | |
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Discussion | |
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Conclusion | |
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Case Study 13-A Simple Approach to Forecasting Sales | |
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Month Length Adjustment | |
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Graph Your Data | |
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Worksheet Setup | |
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First Forecasting Method | |
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Second Forecasting Method | |
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Selection of Length of Prior Period | |
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Reasonableness Test | |
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Conclusion | |
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Case Study 14-Data Analysis Tools for Forecasting Sales | |
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Need for Analytical Tests | |
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Graph Your Data | |
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Statistical Procedures | |
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Tests for Randomness | |
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Tests for Trend and Seasonality | |
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Testing for Seasonality and Trend with a Regression Model | |
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Conclusion | |
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Notes | |
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Case Study 15-Determining Lost Sales with Stationary Time Series Data | |
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Prediction Errors and Their Measurement | |
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Moving Averages | |
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Array Formulas | |
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Weighted Moving Averages | |
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Simple Exponential Smoothing | |
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Seasonality with Additive Effects | |
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Seasonality with Multiplicative Effects | |
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Conclusion | |
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Case Study 16-Determining Lost Sales Using Nonregression Trend Models | |
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When Averaging Techniques Are Not Appropriate | |
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Double Moving Average | |
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Double Exponential Smoothing (Holt's Method) | |
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Triple Exponential Smoothing (Holt-Winter's Method) for Additive Seasonal Effects | |
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Triple Exponential Smoothing (Holt-Winter's Method) for Multiplicative Seasonal Effects | |
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Conclusion | |
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Appendix The Next Frontier in the Application of Statistics | |
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The Technology | |
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EViews | |
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Minitab | |
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NCSS | |
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The R Project for Statistical Computing | |
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SAS | |
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SPSS | |
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Stata | |
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WINKS SDA 7 Professional | |
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Conclusion | |
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Bibliography of Suggested Statistics Textbooks | |
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Glossary of Statistical Terms | |
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About the Authors | |
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Index | |