ANOVA Quiz

Analysis of variance is a statistical method of comparing the ________ of several populations.

• standard deviations

• variances

• means

• proportions

How many pairwise comparisons would there be for an ANOVA with four groups?

• 16

• 4

• 12

• 6

In a one-way ANOVA, which of the following statements is correct?

• There are multiple interactions.

• An interaction is present.

• There is no interaction.

• An interaction can be tested.

ANOVA tests use which of the following distributions?

• t

• z

• F

• Chi-square

The degrees of freedom for the F test in a one-way ANOVA are:

• (n - 1) and (k - n).

• (k - n) and (n - 1).

• (n - k) and (k - 1).

• (k - 1) and (n - k).

Which of the following formulas is used to calculate the F statistic for a one-way ANOVA experiment?

• MSB/MSW

• MSW/MSB

• SSB/SSW

• SSW/SSB

As variability due to chance decreases, the value of F will:

• increase

• stay the same

• decrease

• can’t tell from the given information

The sum of squares ______ measures the variability of the observed values around their respective group means.

• total

• between

• within

• interaction

When conducting an ANOVA, the F value will always fall within what range?

• between negative infinity and infinity

• between 0 and 1

• between 0 and infinity

• between 1 and infinity

If F = 5, the result is statistically significant:

• Always

• Sometimes

• Never