There are two sections (see QUESTIONS FOR THE PROJECT):
You will perform some analyses in Excel, save it and then provide a summary in Word. There is no required length. You are going to be graded on completing the EXCEL portion and the summarizing of the data in WORD/PDF document. I will not grade on grammar. You are encouraged to use the class notes for the exercise.
COMMON EXCEL FORMULA
=AVERAGE() =MEDIAN() =STDEV.S() – Std Dev for a sample
=STDEV.P() – Std Dev for a population =VAR.S() – variance for a sample
=VAR.P() – variance for a population
QUESTIONS FOR THE PROJECT
PART 1: Data Exploration and Preliminary Analysis
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DUE DATE |
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QUESTIONS, PART I |
Point Value |
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|
1 |
How many data points are there in each data set? |
1 |
|
2 |
What is the average, median, variance and standard deviation of each variable? |
7 |
|
3 |
Graph each variable using a bar chart |
5 |
|
4 |
Are the data skewed? |
1 |
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Which direction? |
1 |
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Why? (Use a Z-score to prove your reasoning) |
5 |
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|
5 |
Summarize the nation and the dependent variables that are possible outliers. |
5 |
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TOTAL |
25 |
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PART 2: Multiple Regression
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DUE DATE |
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QUESTIONS, PART II |
Point Value |
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|
6 |
Create scatter plots between the dependent and each independent variable? Show the individual R2 value. What are the correlations? Which variable seems to be the strongest and weakest? |
10 |
|
7 |
Determine the formula for this regression. |
1 |
|
8 |
What is the coefficient of determination? What is the adjusted coefficient of determination? What does each mean? |
3 |
|
9 |
At what point is each independent variable significant? What does a 1 unit increase in each independent variable do to the dependent variable? |
4 |
|
10 |
What is the mean squared error for this model? What does it mean? |
3 |
|
11 |
Test the overall significance of the model. |
4 |
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TOTAL |
25 |
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UPLOAD YOUR RAW DATA FILE AND A SUMMARY IN WORD/PDF FORMAT |
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