Researchers have sought to examine the effect of various types of music on agitation levels in patients who are in the early and middle stages of Alzheimer's disease. Patients were selected to participate in the study based on their stage of Alzheimer's disease. Three forms of music were tested: Easy listening, Mozart, and piano interludes. While listening to music, agitation levels were recorded for the patients with a high score indicating a higher level of agitation. Scores are recorded below.

Group	Piano Interlude	Mozart	Easy Listening
Early Stage Alzheimer's	21 24 22 18 20	9 12 10 5 9	29 26 30 24 26
Middle Stage Alzheimer's	22 20 25 18 20	14 18 11 9 13	15 18 20 13 19

1. Complete the following ANOVA table.

Source	SS	df	MS	F
Type of Music	740	2
Degree of Alzheimer's	30	1
Music x Alzheimer's	260	2
Within	178	24
Total

1. Graph data.

1. Are there any significant main effects or an interaction effect.

1. Interpret answer.