A survey of hotels found that the average hotel room rate in New Orleans is $88.42 and the average room rate in Phoenix is $80.61. The survey sampled 50 hotels in each city. The standard deviations ...
... were $5.62 and $4.83, respectively. At alpha=.05, it can be concluded that there is a significant different in the rates?
The difference in rate between New Orleans and Phoenix is $7.81
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