Analysis of variance is used to _____________.
A) Compare nominal data
B) Compute a t test
C) Compare population proportions
D) Simultaneously compare several population means

Question

Quizplus · Accepted Answer

Analysis of variance (ANOVA) is a statistical technique used to test the null hypothesis that the mean of several groups are equal. It is used to simultaneously compare several population means, making choice D the best answer. A is incorrect because ANOVA is used to compare interval or ratio data, not nominal data. B is incorrect because ANOVA is not used to compute t-tests, but rather it is a separate statistical test. C is incorrect because ANOVA is not used to compare population proportions, which is commonly done using chi-square tests.

Analysis of Variance Is Used to _____________