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1. The following table represents the length of hospital stay (in overnights) for a sample of patients brought to the ER at a city hospital,

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1. The following table represents the length of hospital stay (in overnights) for a sample of patients brought to the ER at a city hospital, broken down by whether the patient had private health insurance coverage or was covered under MassHealth (state Medicaid program for low income with special eligibility requirements). Coverage Nights Private MassHealth Total 10 15 25 20 10 30 23 31 UI A W N H O 20 H W W OO 7 10 3 4 Total 80 40 120a. Calculate the appropriate percentages for this crosstabulation and display the percentages in a clustered bar graph. b. What is the relative risk (RR) that a patient will be admitted (spend at least 1 night hospitalized) depending on their health insurance coverage? (Hint: you will need to collapse the crosstab by combining 1 through 5 days.) c. What is the odds ratio (OR) that a patient will be admitted (spend at least 1 night hospitalized) depending on their health insurance coverage? d. Is the overall distribution of length of stay skewed left, symmetric or skewed right

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