Source DF 88 MS F P Groups 2 123.32 61.66 10.21 0.003 Error 12 72.50 6.04 Total 14 195.82 What is the pooled standard deviation? What degrees of freedom are used in doing inferences for these means and differences in means? Round your answer for the pooled standard deviation to two decimal places. The pooled standard deviation is n degrees of freedom = n