Q51 Data recorded in table below by observing the activity of a single customer line during an eight-hour period from 9:00 AM to 5:00 P.M. Find the traffic intensity during the eight-hour period and during busy hour (which occurs between 4:00 PM and 5:00 P.M.). Call no Call started 8:15 9:31 10:17 10:24 10:37 10:55 12:01 2:09 3:15 4:01 4:38 Callended 9:18 9:41 10:24 10:34 10:42 11:00 12.02 2:14 3:30 4:35 4:43 Call duration (min.) 3.0 10.0 7.0 10.0 5.0 5.0 1.0 5.0 15.0 34.0 5.0 a 9 10 11