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Course Project: AJ DAVIS DEPARTMENT STORES

Introduction | Project Part A: Exploratory Data Analysis | Project Part A: Grading Rubric | Project Part B: Hypothesis Testing and Confidence Intervals | Project Part B: Grading Rubric | Project Part C: Regression and Correlation Analysis | Project Part C: Grading Rubric | |

Introduction| |

AJ DAVIS is a department store chain, which has many credit customers and wants to find out more information about these customers. A sample of 50 credit customers is selected with data collected on the following five variables: 1. LOCATION (Rural, Urban, Suburban)

2. INCOME (in $1,000's – be careful with this)

3. SIZE (Household Size, meaning number of people living in the household) 4. YEARS (the number of years that the customer has lived in the current location) 5. CREDIT BALANCE (the customers current credit card balance on the store's credit card, in $). The data appears below, and is available in Doc Sharing Course Project Data Set as an EXCEL file: LOCATION| INCOME($1000)| SIZE| YEARS| CREDIT BALANCE($)| Urban| 54| 3| 12| 4016|

Rural| 30| 2| 12| 3159|

Suburban| 32| 4| 17| 5100|

Suburban| 50| 5| 14| 4742|

Rural| 31| 2| 4| 1864|

Urban| 55| 2| 9| 4070|

Rural| 37| 1| 20| 2731|

Urban| 40| 2| 7| 3348|

Suburban| 66| 4| 10| 4764|

Urban| 51| 3| 16| 4110|

Urban| 25| 3| 11| 4208|

Urban| 48| 4| 16| 4219|

Rural| 27| 1| 19| 2477|

Rural| 33| 2| 12| 2514|

Urban| 65| 3| 12| 4214|

Suburban| 63| 4| 13| 4965|

Urban| 42| 6| 15| 4412|

Urban| 21| 2| 18| 2448|

Rural| 44| 1| 7| 2995|

Urban| 37| 5| 5| 4171|

Suburban| 62| 6| 13| 5678|

Urban| 21| 3| 16| 3623|

Suburban| 55| 7| 15| 5301|

Rural| 42| 2| 19| 3020|

Urban| 41| 7| 18| 4828|

Suburban| 54| 6| 14| 5573|

Rural| 30| 1| 14| 2583|

Rural| 48| 2| 8| 3866|

Urban| 34| 5| 5| 3586|

Suburban| 67| 4| 13| 5037|

Rural| 50| 2| 11| 3605|

Urban| 67| 5| 1| 5345|

Urban| 55| 6| 16| 5370|

Urban| 52| 2| 11| 3890|

Urban| 62| 3| 2| 4705|

Urban| 64| 2| 6| 4157|

Suburban| 22| 3| 18| 3579|

Urban| 29| 4| 4| 3890|

Suburban| 39| 2| 18| 2972|

Rural| 35| 1| 11| 3121|

Urban| 39| 4| 15| 4183|

Suburban| 54| 3| 9| 3730|

Suburban| 23| 6| 18| 4127|

Rural| 27| 2| 1| 2921|

Urban| 26| 7| 17| 4603|

Suburban| 61| 2| 14| 4273|

Rural| 30| 2| 14| 3067|

Rural| 22| 4| 16| 3074|

Suburban| 46| 5| 13| 4820|

Suburban| 66| 4| 20| 5149|

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PROJECT PART A: Exploratory Data Analysis| |

* Open the file MATH533 Project Consumer.xls from the Course Project Data Set folder in Doc Sharing. * For each of the five variables, process, organize, present and summarize the data. Analyze each variable by itself using graphical and numerical techniques of summarization. Use MINITAB as much as possible, explaining what the printout tells you. You may wish to use some of the following graphs: stem-leaf diagram, frequency/relative frequency table, histogram, boxplot, dotplot, pie chart, bar graph. Caution: not all of these are appropriate for each of these variables, nor are they all necessary. More is not necessarily better. In addition be sure to find the appropriate measures of central tendency, and measures of dispersion for the above data. Where appropriate use the five number summary (the Min, Q1, Median, Q3, Max). Once again, use MINITAB as appropriate, and explain what the results mean. * Analyze the connections or relationships between the variables. There are ten pairings here (Location and Income, Location and Size, Location and Years, Location and Credit Balance, income and Size, Income and Years, Income and Balance, Size and Years, Size and Credit Balance,...