To calculate the p-value, you will count how many of the simulated Mean Group Diff statistics are equal to ______ or (larger/smaller). (Review your answer to question 14 to consider what values are "more extreme" than those observed.)Now you will calculate a p-value, as you have done from simulated null distributions many times before, in order to assess the strength of evidence that the experimental data provide against the null hypothesis that activity has no effect on change in brain size.Shuffled Summary statistics: n Mean SD None 24 -0.14 1.23 Soci 27 0.13 1.11 Walk 27 0.23 0.99 TaiC 29 0.29 1.13 pooled 107 0.14 1.11