4. Prepare a run chart for the following 911 call data. Use five-minute intervals (i.e., count the calls received in each five-minute interval, and use intervals of 0-4, 5-9, etc.). Note: Two or more calls may occur in the same minute; there were three operators on duty this night. What can you conclude from the run chart? LO3 Call Time Call Time Call Time I 1:03 15 1:43 29 2:03 2 1:06 16 1:44 30 2:04 3 1:09 17 1:47 31 2:06 - 1:11 18 1:48 32 2:07 S 1:12 19 1:50 33 2:08 9 ? 1:17 20 1:52 34 2:08 1:21 21 1:53 35 2:11 00 0 1:27 22 1:56 36 2:12 1:28 23 1:56 37 2:12 10 1:29 24 2:00 38 2:13 11 1:31 25 2:00 39 2:14 12 1:36 26 2:01 40 2:14 13 1:39 27 2:02 41 2:16 14 1:42 28 2:03 42 2:19