In a call center, the average waiting time for an answer (in seconds) is shown below by time of day. Research question: At α = .01, does the waiting time differ by day of the week? Note: Wait Only the first 3 and last 3 observations are shown.

Average Waiting Time (in seconds) for Answer (n 26) Mon Tue Wed Thu 39 53 32 Fri 06:00 06:30 07:00 34 52 36 70 103 39 49 91 47 17:30 18:00 18:30 28 35 25 27 115 26 14 34 26 47