(3) determine whether the response time is
or not. (two tail test)
The EMS director wants to perform a hypothesis test,
with a .05 level of significance, to determine
whether the service goal equals to 12 minutes or not.
The response times for a random sample of 40
medical emergencies were tabulated.
mean is 10.75 minutes.
The population standard
deviation is believed to be 3.2 minutes.
Develop the hypotheses.
Compute the value of the test statistic.