Marquise 0.71 2,732 0.70 1,915 Premium cut Round 0.66 Premium cut Round 1,885 Round 0.62 1,397 Good cut Round 0.52 2,555 Premium cut Princess 0.51 1,337 Ideal cut Round 0.51 1,558 Premium cut Round 0.45 1, 191 Premium cut Princess 0.44 1,319 Average cut Marquise 0.44 1,319 Premium cut Round 0.40 1,133 Premium cut Round 0.35 1,354 Good cut Round 0.32 896 Premium cut a. Develop a box plot of the variable price and comment on the result. Are there any outliers? What is the median price? What are the values of the first and the third quartiles? b. Develop a box plot of the variable size and comment on the result. Are there any outliers? What is the median price? What are the values of the first and the third quartiles? c. Develop a scatter diagram between the variables price and size. Be sure to put price on the vertical axis and size on the horizontal axis. Does there seem to be an associ- ation between the two variables? Is the association direct or indirect? Does any point seem to be different from the others? d. Develop a contingency table for the variables shape and cut grade. What is the most common cut grade? What is the most common shape? What is the most common combination of cut grade and shape? 30. FILE Listed below is the amount of commissions earned last month for the eight mem- bers of the sales staff at Best Electronics. Calculate the coefficient of skewness using both methods. Hint: Use of a spreadsheet will expedite the calculations. 980.9 1,036.5 1,099.5 1 1,153.9 1,409.0 1,456.4 1,718.4 1,721.2