Question: The table below shows the sample data collected to compare the average room rates per night at the Westin and DoubleTree hotel chains. Westin DoubleTree

The table below shows the sample data collected to compare the average room rates per night at the Westin and DoubleTree hotel chains. Westin DoubleTree Sample size, n 44 58 Mean rates, $ 166 126 Standard deviation, $ 20.5 14.6 What is the lower bound of the 98% confidence interval for the difference of the average room rates per night between Westin and DoubleTree hotel chains

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