The local amusement park was interested in the average wait time at their most popular roller coaster at the peak park time (2 p.m. ).They selected 13 patrons and had them get in line between 2 and 3 p.m.Each was given a stopwatch to record the time they spent in line.The times recorded were as follows (in minutes).
118,124,108,116,99,120,148,118,119,121,45,130,118
What are the lower and upper limits?
A)108.5,128.5
B)80.5,154.00
C)127.75,138.25
D)143.50,154.00
E)15.75,31.50

Question

Quizplus · Accepted Answer

The lower limit is the average minus half the range, and the upper limit is the average plus half the range. The average is 123.54 minutes, and the range is 103 minutes. Therefore, the lower limit is 108.5 minutes and the upper limit is 138.5 minutes.

The Local Amusement Park Was Interested in the Average Wait