A USA based cable broadband company wants to compare the average customer satisfaction scores between its east coast and west coast customer bases. The customer survey asks for a score between 1 and 5, with 1 being poor and 5 being excellent. 174 east coast customers are surveyed, and the sample mean is 3.51 with a sample standard deviation (s) of 0.51. For the west coast, 355 customers are surveyed, and the sample mean is 3.24 with a sample standard deviation (s) of 0.52.

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