FIGURE A: SAMPLING DISTRIBUTIONS IN STATISTICAL ANALYSIS Rubin, Barry
FIGURE A: SAMPLING DISTRIBUTIONS IN STATISTICAL ANALYSIS
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Enter your height in inches here: _________
Use the provided worksheet on the back to calculate the means of each sample. Transfer the results here:
Sample 1 Mean: _______
Sample 5 Mean: _______
Sample 9 Mean: _______
Sample 2 Mean: _______
Sample 6 Mean: _______
Sample 10 Mean: _______
Sample 3 Mean: _______
Sample 7 Mean: _______
Sample 11 Mean: _______
Sample 4 Mean: _______
Sample 8 Mean: _______
Sample 12 Mean: _______
Create a frequency distribution for these sample means. Begin by calculating the range (difference between
the minimum and maximum values of the sample means). Then divide the range by 5 to determine an
approximate interval width. Begin the first category’s lower limit as the minimum value of your sample means
and the first category’s upper limit as the minimum value plus the interval width. Add 0.01 to this number to
get the second category’s lower limit. Then repeat the process to get the limits of the succeeding categories
until you have the fifth category limits established.
FREQUENCY DISTRIBUTION OF MEAN HEIGHTS
Category Limits
Number of Means
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Create a histogram of the frequency distribution of mean heights using the following grid:
5. Write one or two sentences interpreting the information provided by the above histogram.
Then indicate how this exercise has added to your understanding of a sampling distribution.