1. Consider an experiment with four groups, with eight values

in each. For the ANOVA summary table below, fill in all the

missing results:

Source Degrees ofFreedom Sum ofSquares MeanSquare(Variance) F

Among c - 1 = ? SSA = ? MSA = 80 FSTAT = ? groups Withinn - c = ? SSW = 560 MSW = ? groups Total n - 1 = ? SST = ?

2.A hospital conducted a study of the waiting time in itsemergencyroom. The hospital has a main campus and threesatellitelocations. Management had a business objective ofreducing waiting time for emergency room cases that did notrequire immediate attention. To study this, a random sample of15 emergency room cases that did not require immediate attentionat each location were selected on a particular day, andthe waiting times (measured from check-in to when the patientwas called into the clinic area) were collected and stored in ERWaiting . a. At the 0.05 level of significance, is there evidence of a difference in the mean waiting times in the four locations? b. If appropriate, determine which locations differ in mean waiting time. c. At the 0.05 level of significance, is there evidence of a difference in the variation in waiting time among the four locations?