Equations algorythm

# Equations algorythm - RES 341/342 Statistical Summary Page...

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RES 341/342 Statistical Summary Page C. M. Talbott Ph.D. I.) Basic Statistics Descriptions of Central Tendencies of the Data a. Mean b. Median Median = Middle value in the list (half are above and half are below) c. Mode Mode = Result that occurs most frequently Descriptions of Dispersion of the Data a. Range Range = Highest value – Lowest Value b. Variance Population Sample c. Standard Deviation (STDEV) Population Sample II.) For Parametric Data Data is Parametric if:

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1.) Normally distributed (bell shaped and evenly distributed about the mean) 2.) Populations from which the samples are drawn have equal variances 3.) Data is measured on at least an interval scale (if values of 5 and 10, is 10 twice 5?) If Single Population then If Population STDEV is known then Else if large Sample (n > 30) and Population STDEV unknown then Else if n < 30 and Population STDEV is unknown then Else if testing about a Population Proportion and n π and n(1- π ) are at least 5 then End if Else if Comparing 2 Populations then
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Equations algorythm - RES 341/342 Statistical Summary Page...

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