We have great pleasure in presenting First edition “Quantitative Analysis for Business Decisions – II” written for students of UG courses. The related matters are written in a simple and easily understandable.
This volume is an attempt to provide the students with thorough understanding of Quantitative Analysis for Business Decisions – II. We have presented the subject matter in a systematic manner with liberal use of charts and diagrams where ever necessary so as to make it interesting and sustain students’ interest.
Contents –
Unit – 1 Correlation Analysis
Introduction
Meaning of Correlation
Definition of Correlation
Uses of Correlation
Types of Correlation
Interpretation of Correlation
Probable Error
Calculation of Karl Pearson’s Coefficient of Correlation
(Deviations taken from Arithmetic Mean only)
Spearman’s Rank Correlation
Problems when Ranks are Given
Ranks are not given and Tied Ranks
(Excluding Bi-variate and Multiple Correlation)
Review Questions
Practical Problems with Answer
Unit – 2 Regression Analysis
Introduction
Meaning of Regression Analysis
Difference between Correlation and Regression
Regression Equations, X on Y and Y on X using
Regression Coefficients
Problems on Estimations
Review Questions
Practical Problems with Answer
Unit – 3 Time Series Analysis
Introduction
Meaning of Time Series Analysis
Components of a Time Series
Measurement of Trend
Calculation of trend Values(Yc) under Least Square Method
Moving Average Method (3 yearly, 4 yearly
and 5 yearly moving averages)
Review Questions
Practical Problems with Answer
Unit – 4 Interpolation and Extrapolation
Introduction
Meaning of Interpolation and Extrapolation
Assumptions of Interpolation and Extrapolation
Uses of Interpolation and Extrapolation
Methods of Interpolation
Binomial Expansion Method (Estimation of One
and Two missing Values)
Newton’s Forward difference Method (problems on
interpolating with one missing value)
Review Questions
Practical Problems with Answer
Unit – 5 Association of Attributes
Introduction
Classification
Correlation
Association
Types of Association
Comparison of Observed
Expected Frequencies
Yule’s Coefficient of Association
Chi-square Test
Assumptions
Degrees of Freedom
Significance Level
Test of Goodness of Fit
Test of Independence
2 x 2 Problems
Review Questions
Skill Development Activities