marginally significantp = 0.048
Overall, when compared by two-tailed, equal variance student t-test, there was a marginally significant difference between column extractions and HotShot ( p = 0.048) and significant difference for column and water ( p = 0.01), whilst water extractions were also significantly slower than Xtract, XT ( p = 0.02) and QuickExtract, QE ( p = 0.04).