A pediatrician speculated that frequency of visits to his office
A pediatrician speculated that frequency of visits to his office may be influenced by type of medical insurance coverage. As an exploratory study, she randomly chose 15 patients: 5 whose parents belong to a health maintenance organization (HMO), 5 whose parents had traditional medical insurance, and 5 whose parents were uninsured. Using the frequency of visits per year from the following table, test the null hypothesis that type of insurance coverage has no effect on frequency of visits.
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