A consumer advocate decided to investigate the average wait time for a table for one at two local restaurants. Eighteen customers were sent to each restaurant at randomly selected times and the time they waited for a table was recorded in minutes. Is there a difference in the average wait time for the two restaurants? Use a significance level of ? = 0.05. Restaurant A: 10 15 7 9 20 5 15 5 7 0 10 12 19 6 0 5 22 18 Restaurant B:12 17 5 12 8 2 10 25 6 35 10 14 9 22 20 18 5 13 a) What is the test statistics and p-value? b) Find a 95% confidence interval for the difference in the wait time between Restaurant A and Restaurant B.

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