Health care issues are receiving much attention in both academic and political arenas. A sociologist recently conducted a survey of citizens over 60 years of age whose net worth is too high to qualify for Medicaid but who have no private health insurance. The ages of 25 uninsured senior citizens were as follows:
|
68
|
73
|
66
|
76
|
86
|
74
|
61
|
89
|
65
|
90
|
69
|
98
|
76
|
|
62
|
81
|
63
|
68
|
81
|
70
|
73
|
60
|
87
|
75
|
64
|
82
|
|
Using Minitab, create a box-plot and histogram for the data above and copy the results into your Problem Set.
a. Based on these graphs do you believe the data appears to be normally distributed? Why or why not? (You must include the graphs and explain what you are looking for as you make this decision in order to receive full credit on this one.)
b. Explain the effect outliers can have on the analysis of the center of this data set. Based on the box-plot and histogram you created for problem 1, do there appear to be any outliers?