4. Fill in the blank. Medicare would like to test the hypothesis that the average...
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4. Fill in the blank. 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. The standard deviation for this sample Round to two decimal was $530. Medicare would like to set a = 0.05. The test statistic for this hypothesis test would be places. OA. Z = 1.98 OB. =-2.16 OC. 2.55 OD. = -1.37
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