The worksheet shows sales data from a local cell phone store detailing the number of cell phones sold for the month of September. This data is a sample of their overall sales. Observation Date Sales Observation Date Sales Observation Date Sales 1 9/1/2015 12 11 9/11/2015 AWN 27 21 9/21/2015 41 9/2/2015 17 12 9/12/2015 31 22 9/22/2015 42 9/3/2015 17 13 9/13/2015 32 23 9/23/2015 43 9/4/2015 24 14 9/14/2015 33 24 9/24/2015 45 9/5/2015 24 15 9/15/2015 35 25 6 9/25/2015 46 9/6/2015 25 16 9/16/2015 36 26 9/26/2015 51 9/7/2015 26 17 9/17/2015 37 27 51 8 9/27/2015 9/8/2015 26 18 9/18/2015 37 28 9 9/28/2015 51 9/9/2015 27 19 9/19/2015 39 29 9/29/2015 60 10 9/10/2015 27 20 9/20/2015 41 30 /30/201 82 7) What is the mean number of cell phones sold during the month? A. 39.41 B. 45.50 C. 36.17 D. 26.00 8) Use the method shown in our book to compute and report the median number of sales during the month of September? A. 25.0 B. 35.5 C. 46.0 D. 46.5 9) Use excel to calculate the number of sales corresponding to the 45" percentile? A. 16.0 B. 33.0 C. 44.0 D. 55.0 10) What is the variance of sales? A. 14.02 B. 186.48 C. 312.72 D. 203.24