Response time is an important statistic for measuring the effectiveness of a fire department, and is measured as the difference between the time a fire house receives a call and the time the first piece of fire equipment leaves the station.
The response times for fire departments in a large city are found to have an approximately Normal distribution, with a
mean of 4.5 minutes and a standard deviation of 1.2 minutes. What percentage of fire station response times are
between 4 and 6 minutes?
Find the z-table here.
O 37.7%
O 44.3%
O 55.7%
O 62.3%