214 Fundamentals of Statistics
The worksheet lets you generate 150 random samples from one of eight
common probability distributions with up to 16 observations per sample.
The worksheet also calculates and displays the distribution of the sample
averages. You can change the sample size by dragging the scroll bar up or
down. The worksheet opens, displaying the distribution of the sample aver-
age for the standard normal distribution. To see how the worksheet works,
move the scroll bar, increasing the sample size from 1 to 16.To change the sample size:1 Drag the scroll bar down. The sample size increases from 1 to 16.
As you drag the scroll bar down, the histogram displays the change
in the sample size, and the standard deviation decreases from 1 to
about 0.25.
2 Drag the scroll bar back up to return the sample size to 1.Figure 5-24
The Central
Limit
Theorem
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