When I was grading your homework this week, I thought of this story.
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One day, a boy was interested in taking a course in exploratory data analysis, but he didn't have the money to pay for it. He decided on asking his grandmother for the money for the course. She decided to help, but she said "I hope this is a worthwhile class for you."
Anyway, the boy visited his grandmother recently and told her that the course was going well. The grandmother asked what he was learning and the boy responded:
Last week, we learned how to compare groups of data. We compared the yearly snowfall of Buffalo with Cairo. It was hard to compare the two groups since there was a dependence between level and spread that I learned by constructing a spread versus level graph. But this graph suggested the use of a p = 0.5 power transformation and when I did a spread versus level graph of the transformed data, the dependence between spread and level was reduced.
The grandmother, listening intently, responded "So what did you conclude from your data analysis?"
The boy said proudly "There is more snow in Buffalo than Cairo."
The grandmother then with a heavy sigh said "Can we get our money back?"
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What is the message in this story? (It relates to the work that you did on your homework.)
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1 comment:
The story in interesting.
The boy spent much time talking about what he learnt and did without talking about the details and/or the most important things.Of course, everyone knows there is more rain in Buffalo than Cairo.But the question is;by how much is the difference,the average snowfall,min/max snowfall,etc.
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