MATH 211 1 MODULE 9 – PROJECT: T-TEST PROJECT
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Statistics with Aviation Applications
MATH 211 1 MODULE 9 - PROJECT: T-TEST PROJECT SUBMITTAL 2 Module 9 - Project: t-Test Project Submittal T-Test Project
This T-Test project is to research if there is a cost difference for paperback books between
two major online book sellers, amazon.com and barnesandnoble.com. I chose 50 titles and
compared the prices between the two online dealers. Based off personal shopping experience and
initial data colleting I expect Amazon.com to have lower prices for paperback books than
Barnesandnoble.com. Population
I selected 50 paperback book titles that both Amazon.com and Barnesandnoble.com sell
on their websites. Variables and Data Collection I collected the data for all 50 paperback titles from www.Amazon.com and
www.barnesandnoble.com. I started by finding titles by looking at the New York Times best
sellers list that was listed on Amazon.com, then went to popular titles, and then whet to award
winning titles to get a total of 50 paperback book titles. While doing this I also recorded the price
for the title as well. After I made the first list based off of Amazon.com I then went to
Barnesandnoble.com, and recorded the prices they listed. As I was doing the price collecting I
realized that Barnesandnoble.com didn’t have a few of the titles in paperback so to keep the
integrity of the data I had to find alternate titles. MODULE 9 - PROJECT: T-TEST PROJECT SUBMITTAL 3 Statistical Test and Hypothesis Statement
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