Sample size 2 5 10 30 50 mean of sample means

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Unformatted text preview: ple size. The screen shot below shows the simulation results for N=100 samples of size n=2. The bell shaped curve on the top shows the population distribution. The population has mean 25 and standard deviation 8.22. The histogram in the middle shows the 2 values obtained in a single sample. These two values have a mean of 24.75 and a standard deviation of 10.15. The histogram on the bottom shows the sample mean calculated from each of the 100 samples of size 2. Note that these means have a mean of 24.78 and a standard deviation of 6.51. Recall, the standard deviation of a set of means is called the standard error. The standard error of the sample means in this case is 6.51. © 2011 THE CARNEGIE FOUNDATION FOR THE ADVANCEMENT OF TEACHING A PATHWAY THROUGH STATISTICS, VERSION 1.6, STATWAY™  ­ STUDENT HANDOUT STATWAY™ STUDENT HANDOUT | 9 Lesson 10.1.1 Sampling Distributions of Sample Means...
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This document was uploaded on 03/13/2014 for the course MATH 75 at Skyline College.

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