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Statistical Advisor, How To Calculate Nonparametric Statistics

Use NONPARAMETRICS AND DISTRIBUTION FITTING. This chapter describes detailed descriptive statistics for your data.

In addition to the standard mean (average), nonparametric procedures will compute the harmonic and geometric means, mode (most frequent value), median (50'th percentile), quartiles (25'th and 75'th percentiles) and other percentiles. In addition to the standard deviation and variance, these procedures will compute the average absolute deviation, range, quartile range, etc.

Additional descriptive statistics include the skewness, kurtosis, minimum, maximum, and sum.

After the descriptive statistics have been computed, you may want to plot the distribution of variables.