A survey found that the average hotel room rate in New Orleans is $88.42 with a standard deviation of $5.62. The average room rate in Phoenix is $80.61 with a standard deviation of $4.83. Assume that the data were obtained from two samples of 50 hotels each. At a = 0.05 , can it be concluded that there is a signicant difference in rates? 4) Identify the claim. a)u1=1u2 bmiuz c)u1