Exam 5

5. The owner of Bun'N'Run Hamburger wishes to compare the number of daily sales at two locations. The mean number of daily sales for 10 randomly selected days at the North-side was 73 with a standard deviation of 10.50. For 12 randomly selected days at the South-side location the mean number of daily sales was 78 with a standard deviation of 14.25. Assume the distributions of daily sales for both locations are normal with equal amounts of variation. At 5% significance level, is the number of daily sales of hamburgers at North-side significantly less than at South-side location