Question: An entrepreneur is considering investing in a restaurant in the southeastern part of the city. Three locations are being evaluated. Of particular importance is the income in the geographic area surrounding the proposed restaurant. A random sample of four families is selected near each proposed site. Following are the sample results.

Madison Park Woodlands Southwood

($000) ($000) ($000)

64 74 75

68 71 80

70 69 76

60 70 78

At the .05 level of significance, can the entrepreneur conclude there is a difference in the mean family income of these neighborhoods? You must show your work. (20 points)