book

Business Research Methods

Name: Business Research Methods
Author: Naval Bajpai
ISBN: 9788131754481

by Naval Bajpai

March 2011

Beginner

782 pages

26h 9m

English

Pearson India

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Cover
Title Page
Brief Contents
Contents
About the Author
Dedication
Preface
I Introduction to Business Research
1. Business Research Methods: An Introduction
1.1 Introduction1.2 Difference Between Basic and Applied Research1.3 Defining Business Research1.4 Roadmap to Learn Business Research Methods1.5 Business Research Methods: A Decision Making Tool in the Hands of Management1.5.1 Problem or Opportunity Identification1.5.2 Diagnosing the Problem or Opportunity1.5.3 Executing Business Research to Explore the Solution1.5.4 Implement Presented Solution1.5.5 Evaluate the Effectiveness of Decision Making1.6 Use of Software in Data Preparation and Analysis1.6.1 Introduction to MS Excel 20071.6.2 Introduction to Minitab®1.6.3 Introduction to SPSSSummaryKey TermsDiscussion QuestionsCase 1
2. Business Research Process Design
2.1 Introduction2.2 Business Research Process Design2.2.1 Step 1: Problem or Opportunity Identification2.2.2 Step 2: Decision Maker and Business Researcher Meeting to Discuss the Problem or Opportunity Dimensions2.2.3 Step 3: Defining the Management Problem and Subsequently the Research Problem2.2.4 Step 4: Formal Research Proposal and Introducing the Dimensions to the Problem2.2.5 Step 5: Approaches to Research2.2.6 Step 6: Fieldwork and Data Collection2.2.7 Step 7: Data Preparation and Data Entry2.2.8 Step 8: Data Analysis2.2.9 Step 9: Interpretation of Result and Presentation of Findings2.2.10 Step 10: Management Decision and Its ImplementationSummaryKey TermsDiscussion QuestionsCase 2

II Research Design Formulation
3. Measurement and Scaling
3.1 Introduction3.2 What Should be Measured?3.3 Scales of Measurement3.3.1 Nominal Scale3.3.2 Ordinal Scale3.3.3 Interval Scale3.3.4 Ratio Scale3.4 Four Levels of Data Measurement3.5 The Criteria for Good Measurement3.5.1 Validity3.5.2 Reliability3.5.3 Sensitivity3.6 Measurement Scales3.6.1 Single-Item Scales3.6.2 Multi-Item Scales3.6.3 Continuous Rating Scales3.7 Factors in Selecting an Appropriate Measurement Scale3.7.1 Decision on the Basis of Objective of Conducting a Research3.7.2 Decision Based on the Response Data Type Generated by Using a Scale3.7.3 Decision Based on Using Single- or Multi-Item Scale3.7.4 Decision Based on Forced or Non-Forced Choice3.7.5 Decision Based on Using Balanced or Unbalanced Scale3.7.6 Decision Based on the Number of Scale Points and Its Verbal DescriptionSummaryKey TermsDiscussion QuestionsCase 3
4. Questionnaire Design
4.1 Introduction4.2 What is a Questionnaire?4.3 Questionnaire Design Process4.3.1 Phase I: Pre-Construction Phase4.3.2 Phase II: Construction Phase4.3.3 Phase III: Post-Construction PhaseSummaryKey TermsDiscussion QuestionsCase 4
5. Sampling and Sampling Distributions
5.1 Introduction5.2 Sampling5.3 Why Is Sampling Essential?5.4 The Sampling Design Process5.5 Random versus Non-Random Sampling5.6 Random Sampling Methods5.6.1 Simple Random Sampling5.6.2 Using MS Excel for Random Number Generation5.6.3 Using Minitab for Random Number Generation5.6.4 Stratified Random Sampling5.6.5 Cluster (or Area) Sampling5.6.6 Systematic (or Quasi-Random) Sampling5.6.7 Multi-Stage Sampling5.7 Non-random Sampling5.7.1 Quota Sampling5.7.2 Convenience Sampling5.7.3 Judgement Sampling5.7.4 Snowball Sampling5.8 Sampling and Non-Sampling Errors5.8.1 Sampling Errors5.8.2 Non-Sampling Errors5.9 Sampling Distribution5.10 Central Limit Theorem5.10.1 Case of Sampling from a Finite Population5.11 Sample Distribution of Sample Proportion p̅SummaryKey TermsDiscussion QuestionsNumerical ProblemsCase 5
III Sources and Collection of Data
6. Secondary Data Sources
6.1 Introduction6.2 Meaning of Primary and Secondary Data6.3 Benefits and Limitations of Using Secondary Data6.4 Classification of Secondary Data Sources6.4.1 Books, Periodicals, and Other Published Material6.4.2 Reports and Publication from Government Sources6.4.3 Computerized Commercial and Other Data Sources6.4.4 Media Resources6.5 Roadmap to Use Secondary Data6.5.1 Step 1: Identifying the Need of Secondary Data for Research6.5.2 Step 2: Utility of Internal Secondary Data Sources for the Research Problem6.5.3 Step 3: Utility of External Secondary Data Sources for the Research Problem6.5.4 Step 4: Use External Secondary Data for the Research ProblemSummaryKey TermsDiscussion QuestionsCase 6
7. Data Collection: Survey and Observation
7.1 Introduction7.2 Survey Method of Data Collection7.3 A Classification of Survey Methods7.3.1 Personal Interview7.3.2 Telephone Interview7.3.3 Mail Interview7.3.4 Electronic Interview7.4 Evaluation Criteria for Survey Methods7.4.1 Cost7.4.2 Time7.4.3 Response Rate7.4.4 Speed of Data Collection7.4.5 Survey Coverage Area7.4.6 Bias Due to Interviewer7.4.7 Quantity of Data7.4.8 Control Over Fieldwork7.4.9 Anonymity of the Respondent7.4.10 Question Posing7.4.11 Question Diversity7.5 Observation Techniques7.5.1 Direct versus Indirect Observation7.5.2 Structured versus Unstructured Observation7.5.3 Disguised versus Undisguised Observation7.5.4 Human versus Mechanical Observation7.6 Classification of Observation Methods7.6.1 Personal Observation7.6.2 Mechanical Observation7.6.3 Audits7.6.4 Content Analysis7.6.5 Physical Trace Analysis7.7 Advantages of Observation Techniques7.8 Limitations of Observation TechniquesSummaryKey TermsDiscussion QuestionsCase 7
8. Experimentation
8.1 Introduction8.2 Defining Experiments8.3 Some Basic Symbols and Notations in Conducting Experiments8.4 Internal and External Validity in Experimentation8.5 Threats to the Internal Validity of the Experiment8.5.1 History8.5.2 Maturation8.5.3 Testing8.5.4 Instrumentation8.5.5 Statistical Regression8.5.6 Selection Bias8.5.7 Mortality8.6 Threats to the External Validity of the Experiment8.6.1 Reactive Effect8.6.2 Interaction Bias8.6.3 Multiple Treatment Effect8.6.4 Non-Representativeness of the Samples8.7 Ways to Control Extraneous Variables8.7.1 Randomization8.7.2 Matching8.7.3 Statistical Control8.7.4 Design Control8.8 Laboratory versus Field Experiment8.9 Experimental Designs and Their Classification8.9.1 Pre-Experimental Design8.9.2 True-Experimental Design8.9.3 Quasi-Experimental Designs8.9.4 Statistical Experimental Designs8.10 Limitations of Experimentation8.10.1 Time8.10.2 Cost8.10.3 Secrecy8.10.4 Implementation Problems8.11 Test Marketing8.11.1 Standard Test Market8.11.2 Controlled Test Market8.11.3 Electronic Test Market8.11.4 Simulated Test MarketSummaryKey TermsDiscussion QuestionsCase 8
9. Fieldwork and Data Preparation
9.1 Introduction9.2 Fieldwork Process9.2.1 Job Analysis, Job Description, and Job Specification9.2.2 Selecting a Fieldworker9.2.3 Providing Training to Fieldworkers9.2.4 Briefing and Sending Fieldworkers to Field for Data Collection9.2.5 Supervising the Fieldwork9.2.6 Debriefing and Fieldwork Validation9.2.7 Evaluating and Terminating the Fieldwork9.3 Data Preparation9.4 Data Preparation Process9.4.1 Preliminary Questionnaire Screening9.4.2 Editing9.4.3 Coding9.4.4 Data Entry9.5 Data AnalysisSummaryKey TermsDiscussion QuestionsCase 9
IV Data Analysis and Presentation
10. Statistical Inference: Hypothesis Testing for Single Populations
10.1 Introduction10.2 Introduction to Hypothesis Testing10.3 Hypothesis Testing Procedure10.4 Two-Tailed and One-Tailed Tests of Hypothesis10.4.1 Two-Tailed Test of Hypothesis10.4.2 One-Tailed Test of Hypothesis10.5 Type I and Type II Errors10.6 Hypothesis Testing for a Single Population Mean Using the z Statistic10.6.1 p-Value Approach for Hypothesis Testing10.6.2 Critical Value Approach for Hypothesis Testing10.6.3 Using MS Excel for Hypothesis Testing with the z Statistic10.6.4 Using Minitab for Hypothesis Testing with the z Statistic10.7 Hypothesis Testing for a Single Population Mean Using the t Statistic (Case of a Small Random Sample when n <30)10.7.1 Using Minitab for Hypothesis Testing for Single Population Mean Using the t Statistic (Case of a Small Random Sample, n <30)10.7.2 Using SPSS for Hypothesis Testing for Single Population Mean Using the t Statistic (Case of a Small Random Sample, n <30)10.8 Hypothesis Testing for a Population Proportion10.8.1 Using Minitab for Hypothesis Testing for a Population ProportionSummaryKey TermsDiscussion QuestionsNumerical ProblemsFormulasCase 10
11. Statistical Inference: Hypothesis Testing for Two Populations
11.1 Introduction11.2 Hypothesis Testing for the Difference Between Two Population Means Using the z Statistic11.2.1 Using MS Excel for Hypothesis Testing with the z Statistic for the Difference in Means of Two Populations11.3 Hypothesis Testing for the Difference Between Two Population Means Using the t Statistic (Case of a Small Random Sample, n1, n2 <30, when Population Standard Deviation Is Unknown)11.3.1 Using MS Excel for Hypothesis Testing About the Difference Between Two Population Means Using the t Statistic11.3.2 Using Minitab for Hypothesis Testing About the Difference Between Two Population Means Using the t Statistic11.3.3 Using SPSS for Hypothesis Testing About the Difference Between Two Population Means Using the t Statistic11.4 Statistical Inference About the Difference Between the Means of Two Related Populations (Matched Samples)11.4.1 Using MS Excel for Statistical Inference About the Difference Between the Means of Two Related Populations (Matched Samples)11.4.2 Using Minitab for Statistical Inference About the Difference Between the Means of Two Related Populations (Matched Samples)11.4.3 Using SPSS for Statistical Inference About the Difference Between the Means of Two Related Populations (Matched Samples)11.5 Hypothesis Testing for the Difference in Two Population Proportions11.5.1 Using Minitab for Hypothesis Testing About the Difference in Two Population Proportions11.6 Hypothesis Testing About Two Population Variances (F Distribution)11.6.1 F Distribution11.6.2 Using MS Excel for Hypothesis Testing About Two Population Variances (F Distribution)11.6.3 Using Minitab r Hypothesis Testing About Two Population Variances (F Distribution)SummaryKey TermsDiscussion QuestionsNumerical ProblemsFormulasCase 11
12. Analysis of Variance and Experimental Designs
12.1 Introduction12.2 Introduction to Experimental Designs12.3 Analysis of Variance12.4 Completely Randomized Design (One-Way ANOVA)12.4.1 Steps in Calculating SST (Total Sum of Squares) and Mean Squares in One-Way Analysis of Variance12.4.2 Applying the F-Test Statistic12.4.3 The ANOVA Summary Table12.4.4 Using MS Excel for Hypothesis Testing with the F Statistic for the Difference in Means of More Than Two Populations12.4.5 Using Minitab for Hypothesis Testing with the F Statistic for the Difference in the Means of More Than Two Populations12.4.6 Using SPSS for Hypothesis Testing with the F Statistic for the Difference in Means of More Than Two Populations12.5 Randomized Block Design12.5.1 Null and Alternative Hypotheses in a Randomized Block Design12.5.2 Applying the F-Test Statistic12.5.3 ANOVA Summary Table for Two-Way Classification12.5.4 Using MS Excel for Hypothesis Testing with the F Statistic in a Randomized Block Design12.5.5 Using Minitab for Hypothesis Testing with the F Statistic in a Randomized Block Design12.6 Factorial Design (Two-Way ANOVA)12.6.1 Null and Alternative Hypotheses in a Factorial Design12.6.2 Formulas for Calculating SST (Total Sum of Squares) and Mean Squares in a Factorial Design (Two-Way Analysis of Variance)12.6.3 Applying the F-Test Statistic12.6.4 ANOVA Summary Table for Two-Way ANOVA12.6.5 Using MS Excel for Hypothesis Testing with the F Statistic in a Factorial Design12.6.6 Using Minitab for Hypothesis Testing with the F Statistic in a Randomized Block DesignSummaryKey TermsDiscussion QuestionsNumerical ProblemsFormulasCase 12
13. Hypothesis Testing for Categorical Data (Chi-Square Test)
13.1 Introduction13.2 Defining x2-Test Statistic13.2.1 Conditions for Applying the x2 Test13.3 x2 Goodness-of-Fit Test13.3.1 Using MS Excel for Hypothesis Testing with x2 Statistic for Goodness-of-Fit Test13.3.2 Hypothesis Testing for a Population Proportion Using x2 Goodness-of-Fit Test as an Alternative Technique to the z-Test13.4 x2 Test of Independence: Two-Way Contingency Analysis13.4.1 Using Minitab for Hypothesis Testing with x2 Statistic for Test of Independence13.5 x2 Test for Population Variance13.6 x2 Test of HomogeneitySummaryKey TermsDiscussion QuestionsNumerical ProblemsFormulasCase 13
14. Non-Parametric Statistics
14.1 Introduction14.2 Runs Test for Randomness of Data14.2.1 Small-Sample Runs Test14.2.2 Using Minitab for Small-Sample Runs Test14.2.3 Using SPSS for Small-Sample Runs Tests14.2.4 Large-Sample Runs Test14.3 Mann–Whitney U Test14.3.1 Small-Sample U Test14.3.2 Using Minitab for the Mann–Whitney U Test14.3.3 Using Minitab for Ranking14.3.4 Using SPSS for the Mann–Whitney U Test14.3.5 Using SPSS for Ranking14.3.6 U Test for Large Samples14.4 Wilcoxon Matched-Pairs Signed Rank Test14.4.1 Wilcoxon Test for Small Samples (n ≤15)14.4.2 Using Minitab for the Wilcoxon Test14.4.3 Using SPSS for the Wilcoxon Test14.4.4 Wilcoxon Test for Large Samples (n >15)14.5 Kruskal–Wallis Test14.5.1 Using Minitab for the Kruskal–Wallis Test14.5.2 Using SPSS for the Kruskal–Wallis Test14.6 Friedman Test14.6.1 Using Minitab for the Friedman Test14.6.2 Using SPSS for the Friedman Test14.7 Spearman’s Rank Correlation14.7.1 Using SPSS for Spearman’s Rank CorrelationSummaryKey TermsDiscussion QuestionsFormulasNumerical ProblemsCase 14
15. Correlation and Simple Linear Regression Analysis
15.1 Measures of Association15.1.1 Correlation15.1.2 Karl Pearson’s Coefficient of Correlation15.1.3 Using MS Excel for Computing Correlation Coefficient15.1.4 Using Minitab for Computing Correlation Coefficient15.1.5 Using SPSS for Computing Correlation Coefficient15.2 Introduction to Simple Linear Regression15.3 Determining the Equation of a Regression Line15.4 Using MS Excel for Simple Linear Regression15.5 Using Minitab for Simple Linear Regression15.6 Using SPSS for Simple Linear Regression15.7 Measures of Variation15.7.1 Coefficient of Determination15.7.2 Standard Error of the Estimate15.8 Using Residual Analysis to Test the Assumptions of Regression15.8.1 Linearity of the Regression Model15.8.2 Constant Error Variance (Homoscedasticity)15.8.3 Independence of Error15.8.4 Normality of Error15.9 Measuring Autocorrelation: The Durbin–Watson Statistic15.10 Statistical Inference About Slope, Correlation Coefficient of the Regression Model, and Testing the Overall Model15.10.1 t Test for the Slope of the Regression Line15.10.2 Testing the Overall Model15.10.3 Estimate of Confidence Interval for the Population Slope (β1)15.10.4 Statistical Inference about Correlation Coefficient of the Regression Model15.10.5 Using SPSS for Calculating Statistical Significant Correlation Coefficient for Example 15.215.10.6 Using Minitab for Calculating Statistical Significant Correlation Coefficient for Example 15.2SummaryKey TermsDiscussion QuestionsNumerical ProblemsFormulasCase 15
16. Multivariate Analysis—I: Multiple Regression Analysis
16.1 Introduction16.2 The Multiple Regression Model16.3 Multiple Regression Model with Two Independent Variables16.4 Determination of Coefficient of Multiple Determination (R2), Adjusted R2, and Standard Error of the Estimate16.4.1 Determination of Coefficient of Multiple Determination (R2)16.4.2 Adjusted R216.4.3 Standard Error of the Estimate16.5 Residual Analysis for the Multiple Regression Model16.5.1 Linearity of the Regression Model16.5.2 Constant Error Variance (Homoscedasticity)16.5.3 Independence of Error16.5.4 Normality of Error16.6 Statistical Significance Test for the Regression Model and the Coefficient of Regression16.6.1 Testing the Statistical Significance of the Overall Regression Model16.6.2 t Test for Testing the Statistical Significance of Regression Coefficients16.7 Testing Portions of the Multiple Regression Model16.8 Coefficient of Partial Determination16.9 Non-Linear Regression Model: The Quadratic Regression Model16.9.1 Using MS Excel for the Quadratic Regression Model16.9.2 Using Minitab for the Quadratic Regression Model16.9.3 Using SPSS for the Quadratic Regression Model16.10 A Case when the Quadratic Regression Model is a Better Alternative to the Simple Regression Model16.11 Testing the Statistical Significance of the Overall Quadratic Regression Model16.11.1 Testing the Quadratic Effect of a Quadratic Regression Model16.12 Indicator (Dummy Variable Model)16.12.1 Using MS Excel for Creating Dummy Variable Column (Assigning 0 and 1 to the Dummy Variable)16.12.2 Using Minitab for Creating Dummy Variable Column (Assigning 0 and 1 to the Dummy Variable)16.12.3 Using SPSS for Creating Dummy Variable Column (Assigning 0 and 1 to the Dummy Variable)16.12.4 Using MS Excel for Interaction16.12.5 Using Minitab for Interaction16.12.6 Using SPSS for Interaction16.13 Model Transformation in Regression Models16.13.1 The Square Root Transformation16.13.2 Using MS Excel for Square Root Transformation16.13.3 Using Minitab for Square Root Transformation16.13.4 Using SPSS for Square Root Transformation16.13.5 Logarithm Transformation16.13.6 Using MS Excel for Log Transformation16.13.7 Using Minitab for Log Transformation16.13.8 Using SPSS for Log Transformation16.14 Collinearity16.15 Model Building16.15.1 Search Procedure16.15.2 All Possible Regressions16.15.3 Stepwise Regression16.15.4 Using Minitab for Stepwise Regression16.15.5 Using SPSS for Stepwise Regression16.15.6 Forward Selection16.15.7 Using Minitab for Forward Selection Regression16.15.8 Using SPSS for Forward Selection Regression16.15.9 Backward Elimination16.15.10 Using Minitab for Backward Elimination Regression16.15.11 Using SPSS for Backward Elimination RegressionSummaryKey TermsDiscussion QuestionsNumerical ProblemsFormulasCase 16
17. Multivariate Analysis—II: Discriminant Analysis and Conjoint Analysis
17.1 Discriminant Analysis17.1.1 Introduction17.1.2 Objectives of Discriminant Analysis17.1.3 Discriminant Analysis Model17.1.4 Some Statistics Associated with Discriminant Analysis17.1.5 Steps in Conducting Discriminant Analysis17.1.6 Using SPSS for Discriminant Analysis17.1.7 Using Minitab for Discriminant Analysis17.2 Multiple Discriminant Analysis17.2.1 Problem Formulation17.2.2 Computing Discriminant Function Coefficient17.2.3 Testing Statistical Significance of the Discriminant Function17.2.4 Result (Generally Obtained Through Statistical Software) Interpretation17.2.5 Concluding Comment by Performing Classification and Validation of Discriminant Analysis17.3 Conjoint Analysis17.3.1 Introduction17.3.2 Concept of Performing Conjoint Analysis17.3.3 Steps in Conducting Conjoint Analysis17.3.4 Assumptions and Limitations of Conjoint AnalysisSummaryKey TermsDiscussion QuestionsCase 17
18. Multivariate Analysis—III: Factor Analysis, Cluster Analysis, Multidimensional Scaling, and Correspondence Analysis
18.1 Factor Analysis18.1.1 Introduction18.1.2 Basic Concept of Using the Factor Analysis18.1.3 Factor Analysis Model18.1.4 Some Basic Terms Used in the Factor Analysis18.1.5 Process of Conducting the Factor Analysis18.1.6 Using Minitab for the Factor Analysis18.1.7 Using the SPSS for the Factor Analysis18.2 Cluster Analysis18.2.1 Introduction18.2.2 Basic Concept of Using the Cluster Analysis18.2.3 Some Basic Terms Used in the Cluster Analysis18.2.4 Process of Conducting the Cluster Analysis18.2.5 Non-Hierarchical Clustering18.2.6 Using the SPSS for Hierarchical Cluster Analysis18.2.7 Using the SPSS for Non-Hierarchical Cluster Analysis18.3 Multidimensional Scaling18.3.1 Introduction18.3.2 Some Basic Terms Used in Multidimensional Scaling18.3.3 The Process of Conducting Multidimensional Scaling18.3.4 Using SPSS for Multidimensional Scaling18.4 Correspondence AnalysisSummaryKey TermsDiscussion QuestionsCase 18
V Result Presentation
19. Presentation of Result: Report Writing
19.1 Introduction19.2 Organization of the Written Report19.2.1 Title Page19.2.2 Letter of Transmittal19.2.3 Letter of Authorization19.2.4 Table of Contents19.2.5 Executive Summary19.2.6 Body19.2.7 Appendix19.3 Tabular Presentation of Data19.4 Graphical Presentation of Data19.4.1 Bar Chart19.4.2 Pie Chart19.4.3 Histogram19.4.4 Frequency Polygon19.4.5 Ogive19.4.6 Scatter Plot19.5 Oral PresentationSummaryKey TermsDiscussion QuestionsCase 19
Appendices
Glossary
Copyright

Content preview from Business Research Methods

CHAPTER 11 Statistical Inference: Hypothesis Testing for Two Populations

LEARNING OBJECTIVES

Upon completion of this chapter, you will be able to:

Test the hypothesis for the difference between two population means using the z statistic
Test the hypothesis for the difference between two population means using the t statistic
Understand the concept of statistical inference of the difference between the means of two related populations (matched samples)
Test hypothesis for the difference in two population proportions
Test hypothesis about two population variances (F distribution)

STATISTICS IN ACTION: JK PAPER LTD

JK Group, a leading private sector group in India, was founded over 100 years ago. The group is composed of companies with ...

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CHAPTER 11