Question 2 (2 points) Suppose that a firm called Applecore is determining how best to spend its advertising budget; among other selections, Applecore has decided to advertise on a series of websites, but has to decide to either pay an upfront cost each month or pay each time the website shows the add to a potential customer. Further suppose that Applecore surveyed existing customers to see how many frequented each website. The results of the survey are shown in the screenshot below, where a 1 in cell C9 would means that the customer in row 9 frequents the website in column C (if the screenshot doesn't display properly, you can download the source spreadsheet from this link). Finally, suppose that Applecore believes that this sample is representative of the overall customer base, and that the sample represents about 1/1000th of the overall customer base. Which of the following formulas both correctly calculates the savings that Applecore can expect on Website 1 if they pay upfront rather than per Impression AND can be copied for the other Websites? B D E F. G H 1 J 1 $5.0 $0.48 2 $8.0 S0.72 3 $3.5 $0.33 4 S5.5 $0.47 Website 5 $7.0 $0.70 6 $4.5 $0.41 7 $6.0 $0.51 8 $5.0 $0.45 9 $3.0 $0.26 10 $2.2 $0.22 Website 1 8 9 3 0 10 1 A 1 Applecore 2 3 4 Cost/Wk (5000) 5 Cost/Impression 6 7 8 Customer 9 1 10 2 11 3 60 52 61 53 62 Sampled Customers 63 Expected Customers Total Cost, 64 Impressions Exp. Savings if 65 Paying Up Front 0 1 2 0 0 0 0 1 4 4 0 0 1 0 0 0 5 0 0 0 6 0 0 0 0 0 0 0 7 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 0 0 1 0 1 0 0 1 1 O O $B$4*1000-$B$64 B64-B3 - B64-B4*1000 $B$64-$B$3 $B$64-$B$3*1000 $B$4-$B$64 B4-B64 B4* 1000-B64 Question 6 (2 points) Consider the screenshot below (if it doesn't display properly, you can download the source spreadsheet from this link) which shows a potential solution for an Employee Scheduling problem (a problem where you try to meet your staffing requirements without wasting money). Which of the following relation symbols should go in range B8:H8? G H Sat. 6 Sun. 7 A B C D E F Post Office Scheduling Problem 2 3 Starting day of 5-day shift 4 Mon. Tue. Wed. Thurs. Fri. 5 Number starting 1 2 3 4 5 6 Number working on 7 each day 21 19 17 15 8 Relation Minimal number 9 required each day 17 13 15 19 14 10 Total employees Scheduled 23 20 17 16 11 28 11