What percentage of hospitals provide at least some charity care? the following problem is based on information 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
use the data above to find a 90% confidence for the population average, μ, of the percentage of hospitals providing at least some charity care.
select one:
a. 54.7% to 62.9%
b. 57.7% to 66.9%
c. 55.7% to 63.9%
d. can not be determined from information given.