Examlex
In estimating a firm's cost of debt,which of the following should be used?
Parametric Tests
Statistical tests based on assumptions about the distribution of the data (e.g., that it is normally distributed).
Nonparametric Test
A statistical test used when the assumptions for parametric tests are not met, not requiring the population's distribution to follow any specific distribution.
Mann-Whitney U Test
A nonparametric test used to compare differences between two independent groups when the dependent variable is either ordinal or continuous, but not normally distributed.
Paired-difference Experiment
An experimental design where the observations are made in pairs, and the analysis is based on the differences within each pair.
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