Friedman and Rosenman (1974) classified people into twocategories: Type A personalities and Type Bpersonalities.  Type A's are hard-driving, competitive,and ambitious. Type B's are more relaxed, easy goingpeople.  One factor that differentiates these two groupsis the   chronically high level of frustrationexperienced by Type A's, especially when doing statisticalanalyses.  (Oftentimes Type A's have been known to sufferfrom numerical alexithymia.) To verify this aspect separate samplesof Type A's and Type B's are obtained. The following frustrationscores were obtained (note: the higher the score the greater thedegree of frustration)
TypeAÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â TypeB
25Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 21
   23                                            16
   19                                            19
                                                    18   Â
Question: Calculate the estimate of the standard errorof mean differences ___________
Please show all work so I may check mysteps
