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The Complete Idiot's Guide to Statistics, 2nd Edition by Robert Donnelly

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Sampling Distribution of the Mean

The distribution from the previous example represents the sampling distribution of the mean because the mean of each sample was the measurement of interest. This particular distribution has some interesting properties that I will discuss with the following example.
 
On a recent beach vacation, the resort we had chosen advertised a ping-pong tournament, which caught the eye of my 15-year-old son, John, who has enough skill to embarrass his poor old father. (This is the thanks I get for teaching him how to play the game when he had to stand on top of a cooler to see over the table.) As fate would have it, we were paired against each other and, to my relief, I found myself losing 10-8. With John needing one ...

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