A random sample of 400 response times taken during the peak period
of the interactive inquiry system at Futile Finance yields a mean of 21
time units with a standard deviation of 12 time units. The service level
agreement between the MIS Department and the users of the inquiry
system is that the mean response time for the peak period should not
exceed 20 time units. A test is to be made each day at the 1% level.
Does the system pass today?

Question

A random sample of 400 response times taken during the peak period
of the interactive inquiry system at Futile Finance yields a mean of 21
time units with a standard deviation of 12 time units. The service level
agreement between the MIS Department and the users of the inquiry
system is that the mean response time for the peak period should not
exceed 20 time units. A test is to be made each day at the 1% level.
Does the system pass today?

anonymous · Answer

I would just like to know the null hypothesis and the alternative hypothesis, I know how to solve it asides from that