Question: Hospitals: Charity Care. What percentages 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. Based on a random sample hospital reports from eastern states, the following information was obtained (units in percentage of hospital 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

Use a calculator with mean and sample standard deviation keys to verify that \(\bar{X}\) = 62.3 % and s = 8.0 %. Find 90 % confidence interval for the population average \(\mu \) of that percentage of hospital providing at least some charity care.

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