Consider the data with analysis shown in the following com puter output: Level N Mean StDev A 6 86.145 5.449 3 5 26.16? 6.555 C 6 30.000 9.230 D F 69.333 6.154 Source DF 55 M5 F P Groups 3 963.26 321.09 6.60 0003 Error 20 923.52 43.63 Total 23 193623 What is the pooled standard deviation? W'hat degrees of freedom are used in doing inferences for these means and differences in means? Round 1Jurour answer for the pooled standard deviation to two decimal places. The pooled standard deviation is n: . ............ a