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Exhibit 3.11 Descriptive statistics in data analysis
Note that the mean of sales for product A is approximately 43 (thousand). As
suggested earlier, this value, although of moderate interest, does not provide much
useful information. It is the six year average. Of more interest might be a comparison
of each year’s average. This would be useful if we were attempting to identify a
trend, either up or down. More on the summary statistics for product A later.
Exhibit 3.12 Dialogue box for descriptive statistics
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