_____ are most often used with interval or ratio data whereas _____ are most often used with ordinal or nominal data.
A)t-tests; z-tests
B)z-tests; t-tests
C)Parametric tests; nonparametric tests
D)Nonparametric tests; parametric tests

Question

Quizplus · Accepted Answer

Parametric tests assume that the data is normally distributed and have equal variances, and therefore are most appropriate for interval or ratio data. Nonparametric tests do not require such assumptions and are better suited for nominal or ordinal data. T-tests and z-tests are both types of parametric tests, so A and B are incorrect. D is the opposite of the correct answer.

_____ Are Most Often Used with Interval or Ratio Data