as possible. Realizing that the size of the pre 11 CASES v 1. Analyze the data in Table AMS11.1 and write a report to the computer operations department that indicates your finding Include an appendix in which you discuss the reason you selected a particular statistical test to compare the three email interfaces. Managing Ashland MultiComm Services PHASE 1 The computer operations department had a business objec- tive of reducing the amount of time to fully update each sub- scriber's set of messages in a special secured email system. An experiment was conducted in which 24 subscribers were selected and three different messaging systems were used. Eight subscribers were assigned to each system, and the update times were measured. The results, stored in AMS11-1. are presented in Table AMS11.1. DO NOT CONTINUE UNTIL THE PHASE 1 EXERCISE HAS BEEN COMPLETED. TABLE AMS11.1 Update Times (in seconds) for Three Different Systems PHASE 2 After analyzing the data in Table AMS11.1, the computer oper- ations department team decided to also study the effect of the connection media used (cable or fiber). The team designed a study which a total of 30 subscribers were chosen. The subscribers were randomly assigned to one of the three messaging systems so that there were five subscribers in each of the six combinations of the two factorsmessaging system and media used. Measurements were taken on the updated time. Table AMS11.2 summarizes the results that are stored in AMS11-2 System 1 38.8 42.1 45.2 34.8 48.3 37.8 41.1 43.6 System 2 41.8 36.4 39.1 28.7 36.4 36.1 35.8 33.7 System 3 32.9 36.1 39.2 29.3 41.9 31.7 35.2 38.1 TABLE AMS11.2 Update Times (in seconds), Based on Messaging System and Media Used INTERFACE MEDIA System 1 System 2 System 3 35.3 45.6 41.7 Cable 49.0 42.8 37.7 41.8 40.0 41.0 35.6 43.4 28.7 31.8 43.3 Fiber 44.1 40.8 39.6 36.0 37.9 41.1 35.8 45.3 40.2 46.9 51.8 48.5 40.0 43.1 39.6 33.2 2. Completely analyze these data and write a report to the team that indicates the importance of each of the two factors and/ or the interaction between them on the update time. Include recommendations for future experiments to perform