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Hypothesis Test - Coggle Diagram
Hypothesis Test
Comparisson
Kruskal Walli
It compares 3 or more groups
Uses the median
Ordinal Variable
Anova
Similar to the T-test
Two or more categories
T-test
Minimum 2 groups of samples
Diference between means
Minimum 30 samples
Descriptive calculation
Independent Variable / Dependent Variable
Chi Square
Chi-square goodness of fit test
It is used when it appears a nominal variable (variable with categories) that comes from the population and you want to prove if it fits a theoretical expectation.
Chi-square test of independence.
Ir requires the presence of two nominal variables (categorization according to discrete classifications).
Difference between proportions
Relationship
Pearson's
Uses quantitive variables
By the data recolected it creates lines that could be compared between variables
Spearmas
Measures the direction and strength between variables