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Aj Davis Statistical Analysis Part A

742 words - 3 pages

Exploratory Data Analysis AJ Davis
Project Part A
January 18, 2013

Overview of Analysis 3
Individual Variable Analysis 4
Relationship between variables 8
Conclusion 10
Bibliography 11

Overview of Analysis
AJ Davis is a department store chain, which has many credit customers and wants to find out more information about these customers. The department store provided a sample of 50 customers.
The following data was provided for analysis:
1. Location
a. Rural
b. Urban
c. Suburban
2. Income (measured in $1000’s)
3. Household size
4. Years in current location
5. Store credit balance

Individual Variable Analysis
Five individual ...view middle of the document...

The standard deviation is 2.525.
Frequency | Distribution |
Household Size | Frequency |
1 | 8 |
2 | 7 |
3 | 6 |
4 | 4 |
5 | 4 |
6 | 6 |
7 | 7 |
8 | 8 |
Descriptive Statistics | Household Size |
Mean | 4.5 |
Median | 4.5 |
Mode | 1, 8 |
Minimum | 1 |
Maximum | 8 |
Sum | 225 |
Count | 50 |
Range | 7 |
Standard Deviation | 2.525 |

Household Size Chart

Variable: Credit Balance
The third individual variable summary presented is Credit Balance. The mean Credit Balance is $4153.46. The median is $4273 and the mode is $4073. The range is $3814 and the standard deviation is $932. The Q1 and Q3 values are $3292 and $4931 respectively. 30% of the households sampled have a credit balance between $4001 and $4500.
Frequency | Distribution |
Credit Balance in Dollars | Frequency |
2000-2500 | 1 |
2501-3000 | 5 |
3001-3500 | 8 |
3501-4000 | 5 |
4001-4500 | 15 |
4501-5000 | 5 |
5001-5500 | 7 |
5501-6000 | 4 |
Descriptive Statistics | Credit Balance |
Mean | 4153.46 |
Median | 4273 |
Mode | 4073 |
Minimum | 2047 |
Maximum | 5861 |
Sum | 207,673 |
Count | 50 |
Range | 3814 |
Standard Deviation | 932 |
Sample Variance | 868,430 |
Q1 | 3292 |
Q3 | 4931 |

Relationship between variables
Income and Credit Balance
The relationship between Income and Credit Balance is relative and the data show a clear relationship between the...

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