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251 bytes removed ,  19:45, 1 April 2012
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==Comparing a quantitative variable between two groups==
 
==Comparing a quantitative variable between two groups==
 
===t-test===
 
===t-test===
The t-test (also known as the 'Student's t-test') is the most commonly used test for the comparison of two normally distributed variables, and can also be used to assess whether a single normally distributed variable differs from a particular value.
      
===Mann-Whitney U test===
 
===Mann-Whitney U test===
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