A teacher is interested in comparing the effects of 3 different parts of rehearsal methods (Rote rehearsal, Imagery, and Story) on number of words recalled. Participants are randomly assigned into 3 different groups. In every group, participants are asked to study a list of words using the assigned method. The following table shows the result.

a.       What statistical test should be used to examine the data?

b.      Identify H₀ and H_a for this study.

c.       Conduct the one analysis.

d.      Should H₀ be rejected? What should the researcher conclude?

e.       If there is a significant difference, conduct the post hoc test.