In any equation: | |
¯x1 |
= mean of data set 1 |
¯x2 |
= mean of data set 2 |
s1 |
= standard deviation of data set 1 |
s2 |
= standard deviation of data set 2 |
n1 |
= number of data inset 1 |
n2 |
= number of data inset 2 |
(Adapted from Massart et al., 1988)