During the past three years Consolidated Oil Company has converted a number of its petrol stations into Convenience Food Stores (CFS) to increase total sales revenue. Petrol sales have not been increasing and therefore it was decided to expand intorelated business areas. Chris Bishop, the general manager of the CFS Division, asked a statistician, Renee Payne, to assist with this analysis. Renee obtained a random sample of ten weekdays from each of three stores. The data collected was daily sales (in thousands of dollars).

\fA C D 1 Store 1 Store 2 Store 3 2 Mean 10.1 30.1 3 Standard Error 0.82259751 2.303138 0.822598 Median 10.5 10 30.5 5 Mode 11 #N/A 31 Standard 7 Deviation 7.283162 2.601282 8 Sample Variance 6.76666667 53.04444 6.766667 9 Kurtosis -0.9442112 - 1.96932 -0.94421 10 Skewness -0.1363481 0.013579 -0.13635 11 Range 8 18 8 12 Minimum 6 1 26 13 Maximum 14 19 34 14 Sum 101 301 15 Count 10 10 10