5} A plant that manufactures denim jeans recently introduced a computerized automated handling system. While the automated system minimizes operator handling time. it inhibits operators from working ahead and taking breaks from their machine. Astudy investigated the impact of new handling system on worker absentee rates at the jeans plant. Nine weeks were randomly selected and the absentee rate (percentage of workers absent) determined for each day (Monday through Friday) of the work week. The data are listed in the below table. Week Mon Tues Wed Thur Fri 1 5 3 0 6 1.9 1 3 1 6 2 12.9 9.4 2.6 0.4 0.5 3 0.8 0.8 5.7 0.4 1.4 4 2.6 0.0 4.5 10.2 4.5 5 14.1 6 9.3 7 4.1 8 12.9 9 9.0 a) The following is the output of a two way analysis of variance with the 5 days of the workweek being the treatments and the 9 weeks as blocks. Test the hypothesis that the mean absentee rate across the 5 days of the workweek is the same. Analysis of Variance for Percent Absent, using Adjusted SS for Tests Source DF Seq SS AdjSS Adj MS F P Week 8 575.23 575.23 71.90 6.10 0.000 Day 4 94.20 94.20 23.55 2.00 0.1 18 Error 32 376.94 376.94 11.78 Total 44 1046.37 5 = 3.43211 R-Sq = 63.98% R-Sqladj) = 50.47%