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bachelor in business administration
Polytechnic State University Sanluis
Jan-2006 - Nov-2010
CPA
Polytechnic State University
Jan-2012 - Nov-2016
Professor
Harvard Square Academy (HS2)
Mar-2012 - Present
Hospitals: Charity Care What percentage of hospitals provide at least some charity care? The following problem is based on information taken from State Health Care Data: Utilization, Spending, and Characteristics (American Medical Association). Based on a random sample of hospital reports from eastern states, the following information was obtained (units in percentage of hospitals providing at least some charity care):
57.1 |
56.2 |
53.0 |
66.1 |
59.0 |
64.7 |
70.1 |
64.7 |
53.5 |
78.2 |
(a) Use a calculator with mean and sample standard deviation keys to verify that and s = 8.0%.
(b) Find a 90% confidence interval for the population average μ of the percentage of hospitals providing at least some charity care.
Â
(c) Interpretation What does the confidence interval mean in the context of this problem?
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