A researcher wants to study the effectiveness of medication andthe time of day on alertness. 18 patients are randomly selected andthree are assigned to each of six groups. Their alertness scoresare listed on the table. Is there any difference in the mean scoredepending on 1) the type of treatment, 2) time, and 3) aninteraction effect between treatment and time? Use an alpha levelof .05.
| Time |
Morning | Afternoon | Evening |
Treatment A | 12 13 11 | 15 15 14 | 17 18 16 |
Treatment B | 14 14 13 | 16 17 18 | 19 20 19 |
Provide Formula for answers, Excel is not allowed.
