The main cross-town transit route in a large Ontario town makes 120 trips per day. The transit authority will tolerate an average of no more than 5 late running trips per day. They wish to use a control chart to monitor the timeliness of the route. The following data were collected for 8 days. Based on this information, the values of the appropriate lower and upper control limits are
A) 0 and 10.2
B) -1.97 to 10.2
C) 0 and 19.5
D) -9.75 and 19.5
E) none of the above

Question

The main cross-town transit route in a large Ontario town makes 120 trips per day. The transit authority will tolerate an average of no more than 5 late running trips per day. They wish to use a control chart to monitor the timeliness of the route. The following data were collected for 8 days. Based on this information, the values of the appropriate lower and upper control limits are 
A) 0 and 10.2 
B) -1.97 to 10.2 
C) 0 and 19.5 
D) -9.75 and 19.5 
E) none of the above

Quizplus · Accepted Answer

The Answer of The main cross-town transit route in a large Ontario town makes 120 trips per day. The transit authority will tolerate an average of no more than 5 late running trips per day. They wish to use a control chart to monitor the timeliness of the route. The following data were collected for 8 days. Based on this information, the values of the appropriate lower and upper control limits are 
A) 0 and 10.2 
B) -1.97 to 10.2 
C) 0 and 19.5 
D) -9.75 and 19.5 
E) none of the above

The Main Cross-Town Transit Route in a Large Ontario Town