Listed below are the commissions earned ($000) last year by a sample of 15 sales representatives at Furniture Patch Incorporated $4.1 $17.4 $ 5.9 $18.5 $ 8.2 $ 22.3 $11.5 $ 36.3 $ 12.9 $13.6 $ 14.3 $ 16.3 $17.2 $ 43.2 $ 78.4 Click here for the Excel Data File a. Determine the mean, median, and the standard deviation. (Enter your answers in thousands and round your answers to 2 decimal places.) Answer is complete but not entirely correct. Mean $ 11 56 Median $ 12.90x Standard deviation. $ 4.57 x b. Determine the coefficient of skewness using Pearson's method. (Round your answer to 3 decimal places.) b. Determine the coefficient of skewness using Pearson's method. (Round your answer to 3 decimal places.) Coefficient of skewness c. Determine the coefficient of skewness using the software method. (Round your answer to 3 decimal places.) Coefficient of skewness