Sampling Distribution of the Mean Tutorial
This tutorial will help you determine how accurate a sample mean is likely to be, and how this accuracy is related to the sample size. Brief reviews of the normal distribution and the Central Limit Theorem are included as supplemental materials.
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Joel Vaughan (Student)
Beverly Wood (Faculty)
I have used this applet for many semesters but recently have had to give it up because of Java issues. WISE is working on revision of their applets to improve the ease of use but this one isn't there yet. I keep checking though because it is a great visualization of the changes in the sampling distribution resulting from changes in sample size. The worksheet provided with the applet makes it possible to assign as homework with computer-literate students.