# Store 24 Case Analysis Solution

4929 Words May 27th, 2009 20 Pages
Data Analysis and Decision Making Under Uncertainty Week 12 Workshop Store24 Solutions

2

Data Analysis & Decision Making Under Uncertainty (2009)

Part 1: Developing a model for FutureContribution
Figure 1 Plots of each predictor variable against FutureContribution
Scatterplot of FutureContribution vs CYJCWScore Correlation -0.063
50000 50000

Scatterplot of FutureContribution vs BanBoredomScore Correlation 0.164

FutureContribution

FutureContribution

45000 40000 35000 30000 25000 20000 15000 10000 75 80 85 90 95 100

45000 40000 35000 30000 25000 20000 15000 60 70 80 90 100 110 120 130 140

StatTools Student Version

StatTools Student Version

CYJCWScore

BanBoredomScore

Scatterplot of
5 75

Std.Residuals

Std.Residuals

1

1 0.5 0 -0.5 -1 -1.5 -2 -2.5 60 70

StatTools Student Version
80

StatTools Student Version
80

For Academic Use Only 85 90

95

100

For 90 Academic Use Only 100 110

120

130

140

CYJCWScore

BanBoredomScore

Scatterplot of Std.Residuals vs CrewSkills
2.5 2 1.5 2.5 2 1.5

Scatterplot of Std.Residuals vs ManagerSkills

Std.Residuals

0.5 0 -0.5 -1 -1.5 -2 -2.5 2

Std.Residuals

1

1 0.5 0 -0.5 -1 -1.5 -2 -2.5 2

StatTools Student Version
2.5

StatTools Student Version
2.5

For Academic Use Only 3 3.5

4

4.5

For Academic Use Only 3 3.5

4

4.5

CrewSkills

ManagerSkills

Scatterplot of Std.Residuals vs Population
2.5 2 1.5 2.5 2 1.5

Scatterplot of Std.Residuals vs PerCapitaIncome

Std.Residuals

0.5 0 -0.5 -1 -1.5 -2 -2.5 0 5000

Std.Residuals

1

1 0.5 0 -0.5 -1 -1.5 -2 -2.5 0 10000

StatTools Student Version
For 10000Academic Use Only 15000 20000
25000 30000

StatTools Student Version
For 20000Academic Use Only 30000 40000
50000 60000

Population

PerCapitaIncome

Scatterplot of Std.Residuals vs NumberofCompetitors
2.5 2 1.5 2.5 2 1.5

Scatterplot of Std.Residuals vs Fit

Std.Residuals

0.5 0 -0.5 -1 -1.5 -2 -2.5 0 1

Std.Residuals

1

1 0.5 0 10000 -0.5 -1 -1.5 -2 -2.5

StatTools Student Version
2

StatTools Student Version
20000

6

7

8

For 30000 Academic Use Only 40000

50000

60000

NumberofCompetitors

Fit

Store24 Solutions – (2009)

3

Part 1 (a) Inadequacies The plots of standardised