A study was conducted to examine the impact of caffeine and gender on word recall. Ninety-six participants were randomly assigned to one of 16 groups. Each person was given a dose of caffeine and then tested for word recall A 2 (gender) x 2 (Age) x 4(Dose) analysis of variance was conducted and the results are posted below. Tests of Between-Subjects Effects Dependent Variable: recall Type Ill Sum of Source Squares Mean Square F Sig Corrected Model 88.1283 15 5.875 30.330 000 Intercept 5526.735 5526.735 28531.220 000 age 22.620 22.620 116.776 000 Gender 20.167 20.167 104.108 000 Dose 12.848 3 4.283 22. 108 000 age * Gender 8.284 8.284 42.764 000 age * Dose 6.770 3 2.257 11.651 000 Gender * Dose 8.337 3 2.779 14.347 age * Gender * Dose 9.102 3 3.034 15.663 000 Error 15.497 80 194 Total 5630.360 96 Corrected Total 103.625 95 a. R Squared = .850 (Adjusted R Squared = .822)Compatibility Mode - Saved to this PC . byout References Mailings Review View Help AaBbC( AaBbCC AaBbCcI AaBbCcI AaBbC T Heading 1 1 Heading 2 T Normal No Spac.. Title Paragraph Styles Error 15.497 80 194 Total 5630.360 96 Corrected Total 103.625 95 a. R Squared = .850 (Adjusted R Squared = .822) 2 Based upon the results, what number is the average variance in each group? Based upon the results, what number is the variance among the main effect means of Dose ? Based upon the results, what number is the Denominator for all the F ratios? How many total groups are there in this study? The three way interaction is significant and the means are below. Displayt the means needed to identify the source of the three-way interaction. O W UNG