deville

Any one please solve the following question for me.

" The mean score on Expedia.com was 7.32 (sd = 1.87) and the mean score on Kayak.com was 5.72 (sd = 2.99). Is there evidence that more people would likely recommend Expedia.com over Kayak.com? What is the likely range for the difference between means using a 95% confidence level?"
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