In a research to study the effects of four drugs upon reaction time to a series of

standardized tasks, 3 females and 3 males after extensive training were observed under

each of the drugs. The following partially completed ANOVA table is available. Answer

the questions under following circumstances:

i sphericity holds

ii sphericity does not hold and use Greenhouse-Geisser adjustment

iii sphericity does not hold and use Hyunh-Feldt adjustment with = 1.69

(a) Complete the ANOVA table.

SOURCESSDFMSF

Between Subjects

266.67

Error436.67_________________________________________

Within Subjects____________________________________________________

876.0

Interaction46.67

Error83.30

Total

(b) Using = 0.05, what conclusion will you reach about the interaction between

Gender and Drug? State the appropriate null and alternative hypothesis.

(c) Using = 0. 05, what conclusion should be reached about the main effect of

Gender? State the appropriate null and alternative hypothesis.

(d) Using = .05, what conclusion should be reached about the main effect of Drug?

State the appropriate null and alternative hypothesis