\fChapter 16 16.5 Given the aggression scores below for Outcome A of the sleep deprivation experiment , verify that , as suggested earlier , these mean differences shouldn't be taken seriously by testing the null hypothesis at the. 05 level of significance . Use the computation formulas for the various sums of squares and summarize results with an ANOVA table . HOURS OF SLEEP DEPRIVATION ZERO TWENTY- FOUR FORTY - EIGHT 3 2 5 7 Group Mean Grand Mean = 5