Medicare Would Like to Test the Hypothesis That the Average $$\bar { x }$$

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 was $530. Medicare would like to set ? = 0.05. The correct hypothesis statement for this hypothesis test would be

A) H₀: µ c $3,300; H₁: µ < $3,300.
B) H₀: µ = $3,300; H₁: µ × $3,300.
C) H₀: $$\bar { x }$$ = $3,300; H₁: $$\bar { x }$$ × $3,300.
D) H₀: µ × $3,300; H₁: µ = $3,300.