Gm533 Aj Davis Part a

Topics: Standard deviation, Variance, Arithmetic mean Pages: 4 (654 words) Published: December 11, 2012
The following report presents the detailed statistical analysis of the data collected from a sample of credit customers in the department chain store AJ DAVIS. The 1st individual variable considered is Location. It is a qualitative variable. The three subcategories are Urban, Suburban and Rural. Since this is a qualitative variable, the measures of central tendency and descriptive statistics has not been computed for this variable. The frequency distribution and pie chart are given as follows: Frequency Distribution:|

Location| Frequency|
Urban| 21|
Suburban| 15|
Rural| 14|

From the frequency distribution and pie chart, it is clearly stated that the maximum number of customers belongs to the rural category (42%),consequently by those in the suburban category (30%). Only 28% of the customers belong to the urban category.

The 2nd individual variable considered is Size. It is a quantitative variable. The measures of central tendency, variation and other descriptive statistics have been intended for this variable and are given as follows: Descriptive Statistics:|

Size|
Mean| 3.42|
Standard Error| 0.24593014|
Median| 3|
Mode| 2|
Standard Deviation| 1.73898868|
Sample Variance| 3.02408163|
Kurtosis| -0.7228086|
Skewness| 0.52789598|
Range| 6|
Minimum| 1|
Maximum| 7|
Sum| 171|
Count| 50|

Frequency Distribution:|
Size| Frequency|
1| 5|
2| 15|
3| 8|
4| 9|
5| 5|
6| 5|
7| 3|

The mean household size of the customers averages 3.42. The median of the data is 3 and the mode is 2. The standard deviation is given approximately as 1.74. Maximum number of customers has a household size of 2 as is states from the frequency distribution and the bar graph.

The 3rd individual variable considered is Credit Balance. It is a quantitative variable. The methods of central tendency, variation and other descriptive statistics have been analyzed for this variable and...
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