Figure 7.6

Change df with slider. Normal is red and Student t is blue

Note: this representation of the probability density curves is more accurate than the artist's rendition in the textbook.

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e results for multiple samples. About 95% of the confidence intervals should include the true population mean of 80.




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All applets and text are © 2002, Duxbury Press, and may not be copied, altered, decompiled, or distributed in any manner without the explicit written permission of the author and publisher.