The following data gives the salaries (in millions of dollars) of 16 randomly selected Major League Baseball starting pitchers during the 2015 season. # # 23.5 19.5 12.0 9.8 9.0 6.7 4.27 3.2, 2.8 2.5 1.5 0.8 0.52 0.51 0.51 0.51 # # (a) A friend claims the typical salary is less than 2 million dollars. # Use R and the Wilcoxon signed rank test to examine the validity of this claim. # Be sure to include the R input, output, and full hypothesis test write-up from the results. # # (b) Construct a Normal Probability plot of the data and comment on which procedure (t or non-parametric) is most appropriate.