(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 deviation 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 value of the test statistic?
A. 2.55
B. -1.37
C. -2.16
D. 2.21
E. None of the other choices is true
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