A survey found that the average hotel room rate in Luzon is ₱2,400 and the average room rate in Mindanao is ₱2,200. Assume that the data were obtained from two samples of 75 hotels in Luzon and 80 hotels in Mindanao and the standard deviations were ₱250 and ₱215, respectively. At , can it be concluded that there is a significant difference in the rates?

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