One-Way ANOVA Quiz

What does one-way ANOVA test for?

• Differences between two population means

• Differences among three or more population variances

• Differences among three or more population means

• Relationship between two variables

In one-way ANOVA, the 'one-way' refers to:

• The number of variables being tested

• The number of groups being compared

• The number of factors influencing the dependent variable

• The direction of the relationship

Which of the following is an assumption of one-way ANOVA?

• Data must follow a Poisson distribution

• Homogeneity of variances across groups

• Only one group is compared

• Data must be non-parametric

The null hypothesis in a one-way ANOVA is that:

• All group means are equal

• At least one group mean is different

• All group variances are equal

• The data are normally distributed

What is the alternative hypothesis in one-way ANOVA?

• All group means are equal

• At least one group mean is different from the others

• The variances of the groups are equal

• The total mean is greater than the group mean

What is the F-statistic in ANOVA?

• The ratio of the variance between groups to the variance within groups

• The total variance of the data

• The difference between the largest and smallest means

• The square root of the mean difference

If the p-value in a one-way ANOVA is less than 0.05, what should you conclude?

• Fail to reject the null hypothesis

• Reject the null hypothesis

• Conclude all group means are equal

• Conclude variances are equal

What post-hoc test is commonly used after a significant one-way ANOVA?

• Paired t-test

• Tukey's Honest Significant Difference (HSD) test

• Pearson's correlation test

• Levene’s test

Which of the following is the correct formula for the F-ratio in one-way ANOVA?

• Within-group variance\Between-group variance

• Between-group variance\Within-group variance

• Total variance\Between-group variance

• Total variance\Within-group variance

Which of the following software tools can be used to perform one-way ANOVA?

• Microsoft Word

• Microsoft Excel

• Adobe Photoshop

• PowerPoint