Studying or working?
Chi-square test for independence. Chi-square test for independence compares the proportions of two qualitative variables to determine whether or not they are independent.
Evidence Based Medicine pills
Evidence Based Medicine pills
Chi-square test for independence. Chi-square test for independence compares the proportions of two qualitative variables to determine whether or not they are independent.
Chi-square for goodness of fit. Chi-square for goodness of fit allows us to infer whether a sample can come from a given population.
Signs test. Signs test compares two medians using the direction of the values with respect to the mean and binomial probability.
Data imputation. Data imputation includes a number of techniques for assigning theoretical values to variables with missing data.
Degrees of freedom. The degrees of freedom refer to the number of observations in a sample that can take any possible value.