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Here is my quesiton: What is meant by degrees of freedom? As the degrees of freedom increase, what happens to the graph of a t-distribution?
Here is my quesiton:
What is meant by "degrees of freedom"? As the degrees of freedom increase, what happens to the graph of a t-distribution?
At the website given below you can visually see how the shapes of the z and t distributions differ (scroll about halfway down). In addition you can see how the t distribution changes depending on the sample size.
http://ci.columbia.edu/ci/premba_test/c0331/s7/s7_4.html
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