We have great pleasure in presenting First edition “Statistics 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 pro vide the students with thorough understanding of Statistics 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, Regression Analysis
Introduction
Coefficient of Correlation
Covariance
Karl Pearson’s Coefficient of Correlation
Simple Linear Regression
Introduction to Simple Linear Regression
Determining Equation of Regression Line (x on y and y on x)
Measure of Variation
Coefficient of Determination
Standard Error of the Estimate
Statistical Inference about the Slope
Testing the Overall Regression Model
Review Questions
Unit – 2 Time Series Analysis
Introduction
Components of a Time Series
Secular Trend
Short Term Variation
Random or Irregular Variation
Components of Time Series
Time Series Models (Additive, Multiplicative)
Measurement of Trend
Graphical or Free Hand Curve Fitting Method
Semi-Average Method
Least Square Method
Moving Average Method
(2 yearly, 3yearly, 4yearly and 5yearly moving averages)
Review Questions
Unit – 3 Interpolation and Extrapolation
Introduction
Assumptions
Uses of Interpolation and Extrapolation
Methods of Interpolation
Graphic Method
Newton’s Forward Difference Method
Newton’s Backward Difference Method
Introduction to Binomial Expansion Method
Review Questions
Unit – 4 Vital Statistics
Introduction
Meaning of Demography
Meaning of Vital Statistics
Methods of Collection of Vital Statistics and uses
Fertility Rates
Growth Rates
Mortality Rates
Definition of Fertility
Fecundity
Fertility Rates
CBR
ASFR
GFR
TFR
Growth Rate
Gross Reproduction Rate
Net Reproduction Rate
Mortality Rates
CDR
ASDR
S.T.D.R
IMR
NMR
MMR
Review Questions
Unit – 5 Statistical Quality Control
Introduction
Introduction to SQC
Uses of SQC
Process of SQC
Product Control
Control Charts
Upper Control Limit
Lower Control Limit
Central Line
Construction
Statistical basis of 3-s Control Charts
X-bar
R-chart
X-bar
s-chart
np-chart
p-chart
c-chart
u-chart
Rational Sub-grouping
Review Questions
