The upper quartile, for a set of ordinal observations, is a value such that a quarter of the observations have a greater value. Similarly, the lower quartile is a value such that
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For Lower Quartile: Sort all observations in ascending order Comput...
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The lower quartile (Q1) is the median of the lower half of a data set. The upper quartile (Q3) is the median of the upper half of a data set. Example: Given this data set. 12, 5,
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use the chi square test
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