Tutorial Exercise Five observations taken for two variables follow. X ; 3 8 12 18 24 Yi 3 5 4 13 10 (a) Develop a scatter diagram for these data. (b) What does the scatter diagram indicate about the relationship between x and y? (c) Compute and interpret the sample covariance. (d) Compute and interpret the sample correlation coefficient.Annual sales, in millions of dollars, for 21 pharmaceutical companies follow. 8,458 1,424 1,822 8,829 2,409 11,463 558 14,163 6,502 1,800 2,868 1,306 10,448 7,428 3,969 4,291 789 2,177 3,603 5,844 8,255 (a) Provide a five-number summary (in million dollars). (b) Compute the lower and upper limits (in million dollars). (c) Do the data contain any outliers? (d) The largest company on this list has sales of $14,163 million. Suppose a data entry error (a transposition) had been made and the sales had been entered as $41,163 million. Would the method of detecting outliers in part (c) identify this problem and allow for correction of the data entry error? (e) Show a boxplot