Chapter 6: Multiple Linear Regression Data Mining for Business Intelligence Shmueli‚ Patel & Bruce © Galit Shmueli and Peter Bruce 2010 Topics Explanatory vs. predictive modeling with regression Example: prices of Toyota Corollas Fitting a predictive model Assessing predictive accuracy Selecting a subset of predictors (variable selection) Explanatory Modeling Goal: Explain relationship between predictors (explanatory variables) and target Familiar use of regression in data analysis
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Regression Analysis: A Complete Example This section works out an example that includes all the topics we have discussed so far in this chapter. A complete example of regression analysis. PhotoDisc‚ Inc./Getty Images A random sample of eight drivers insured with a company and having similar auto insurance policies was selected. The following table lists their driving experiences (in years) and monthly auto insurance premiums. Driving Experience (years) Monthly Auto Insurance Premium 5 2 12 9
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Ability to negotiate and manage multiple projects. In my current position as Budget Supervisor at the National Institute on Drug Abuse (NIDA)‚ I negotiate and manage multiple projects on a daily basis and ensure their timely completion. I work with the Director‚ assigning priority status to projects each week. NIDA operates in a matrix management structure‚ so it is critical for me to be able to serve on multiple teams and handle various projects simultaneously. I am responsible for assigning weekly
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MGSC 1206 Test 1 Review Solutions Not covered in this review: • Find R(p) • graphing R(p) • graphing in general‚ try graphing in Q#1 – R(x) with C(x)‚ also P(x) • Odds • Optimization Application Problem involving single variable • Building a demand function and then a revenue function • Definitions e.g. Non-linear and dynamic functions; Decision-making under certainty‚ uncertainty and risk Practice Questions: x2 20 (a) Find an expression for the marginal revenue first using the limit
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MATH533: Applied Managerial Statistics PROJECT PART C: Regression and Correlation Analysis Using MINITAB perform the regression and correlation analysis for the data on SALES (Y) and CALLS (X)‚ by answering the following questions: 1. Generate a scatterplot for SALES vs. CALLS‚ including the graph of the "best fit" line. Interpret. After interpreting the scatter plot‚ it is evident that the slope of the ‘best fit’ line is positive‚ which indicates that sales amount varies directly
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Solutions Manual to accompany Quantitative Methods An Introduction for Business Management Provisional version of May 23‚ 2011 Paolo Brandimarte A Wiley-Interscience Publication JOHN WILEY & SONS‚ INC. New York / Chichester / Weinheim / Brisbane / Singapore / Toronto Contents Preface 1 Quantitative Methods: Should We Bother? 1.1 Solutions 1.2 Computational supplements 1.2.1 Optimal mix problem Calculus 2.1 Solutions Linear Algebra 3.1 Solutions Descriptive Statistics: On the Way
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http://www.mathsisfun.com/data/standard-normal-distribution-table.html (Z table) http://www.sjsu.edu/faculty/gerstman/StatPrimer/t-table.pdf (t table) Critical Values (Z) Level of Significance 1% 2% 4% 5% 10% Two Tailed ±2.56 ±2.32 ±2.05 ±1.96 ±1.64 Right tailed +2.32 +2.05 +1.75 +1.64 +1.28 Left tailed -2.32 -2.05 -1.75 -1.64 -1.28 Q1) A cinema hall has cold drinks fountain supplying Orange and Ditzy Colas. When the machine is turned on‚ it fills a 550ml cup with 500ml of the
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in Luzon Using Multiple Regression Analysis January 2014 Abstract This paper illustrates how Multiple Regression Analysis been used in explaining price variationfor selected houses. Each attribute that theoretically identified as price determinant is priced and the perceived contribution of each is explicitly shown and statiscally defended. This paper demonstrates how the statistical analysis is capable of analyzing property investment by considering multiple determinants.
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PEDESTRIAN CROSSING SPEED MODEL USING MULTIPLE REGRESSION ANALYSIS Mako C. DIZON Undergraduate Student Department of Civil Engineering Polytechnic University of the Philippines 13 Bayabas St.Anthony Taytay‚ Rizal 1920 Email: makolet10@yahoo.com Lyvan G. DE PEDRO Undergraduate Student Department of Civil Engineering Polytechnic University of the Philippines Mandaluyong City Dr. Manuel M. MUHI Faculty Department of Civil Engineering Polytechnic University of the Philippines Sta. Mesa‚ Manila Email:
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Quantitative Methods Project Regression Analysis for the pricing of players in the Indian Premier League Executive Summary The selling price of players at IPL auction is affected by more than one factor. Most of these factors affect each other and still others impact the selling price only indirectly. The challenge of performing a multiple regression analysis on more than 25 independent
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