Examlex
To determine the width of class interval,divide the number of class groups by the range of the data.
Independent Samples
Independent samples refer to two or more groups of observations that are collected from separate populations and are not dependent on each other.
Wilcoxon Rank-Sum Test
A nonparametric statistical test used to compare two independent samples to determine if they come from the same distribution.
Nonparametric Test
A statistical test that does not assume a specific distribution for the variable being analyzed.
Simple Random Samples
A subset of a statistical population in which each member of the subset has an equal probability of being chosen.
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