In the resources section of the class smartsite, you will find the Excel dataset for this exam called 'diamond.xlsx.'

 

You will find a database about diamond earrings with 308 observations and 5 variables.

 

Here is the code for the variables:

 

Variable Name

Description

Carat

Total weight of the diamond earrings in carat units

Color

From most to least white – D, E, F, G, H, I

Clarity

From most to least clear – IF, VVSI, VVS2, VS1,VS2

Certification

Certification Body – GIA, IGI, or HRD

Price

Price of the earrings in dollars

 

 

 

From time to time, in order to keep one’s spouse happy, one must but the other an expensive present. In some houses, that has come to mean – “diamond earrings.” The goal is to explain the variation in the price of diamond earrings. How you go about doing so is up to you. The only thing that will be turned in is a 2-4 page essay with whatever charts, graphs, diagrams, references, and anything else that you deem necessary.

 

Suggestions:

 

  1. Make sure to follow the steps that we have used in the homework and the project.

  2. Don’t forget about the theory

  3. Be usre to explain and interpret all results – I don’t want the TA’s to have to read through your output.

  4. Don’t forget about the classical assumptions.

  5. Don’t forget about generating new variables if you need to.

  6.  

 

    • 12 years ago
    STAT 103 Final Exam - Project on Regression Models (Diamond Earrings)
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