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.
Answer to relevant QuestionsA high school guidance counselor hypothesized that peer group identity may have an effect on the number of schools to which her college-prep students apply. She draws eight students at random from the “geeks,” the ...The following is a 2 × 2 cross-tabulation of gender of schizophrenic patients by their responsiveness to medication. Applying Yates’s correction, conduct a chi-square test of significance. Do single-parent families tend to be more impoverished than families with two parents? A family researcher studied a sample of 35 one-parent and 65 two-parent families in a particular city to determine whether their total ...How many registered voters would vote to elect a female president? A curious political scientist selected two equivalent samples of voters. One group was given the description of a hypothetical male candidate who takes the ...Obesity in children is a major concern because t pts them at risk for several serious medical problems. Some researchers believe that a major issue related to this is that children these days spend too much time watching ...
Post your question