Examlex
Compute the empirical and molecular formulas for the compound of molecular weight 180 g/mol which is shown to contain 40.0% C and 6.7% H by elemental analysis.
Kruskal-Wallis Test
A non-parametric method used for comparing more than two samples that are independent, or not related.
Null Hypothesis
A statement that there is no difference or effect, typically to be tested against an alternative hypothesis proposing a difference or effect.
Significance Level
The probability of rejecting the null hypothesis when it is actually true; a threshold chosen by the researcher to indicate the level of evidence needed to reject the null hypothesis.
Kruskal-Wallis Test
A nonparametric statistical test used to compare three or more independent samples to determine if they originate from the same distribution.
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