Question: 42
(Choose 1 answer)
Medicare would like to test the hypothesis that the average monthly rate for one-bedroom assisted-living facility is
equal to $3,300. A random sample of 12 assisted-living facilities had an average rate of $3,690 per month and a standard
of $530. It is believed that the monthly rate for one-bedroom assisted-living facility is normally distributed. Use the
significance level of 0.05 for this hypothesis test, what is the critical value?
A.2.201; -2.201
B. 2.761; -2.761
C. 1.985; -1.985
D. 1.645; -1.645
E. None of the other choices is true
Let
Z0.05 1.645, to.025,112.201, to.05.11 1.796.
