What percentage of hospitals provide at least some charity care? Based on a random sample of hospital reports of eastern states, the following information is obtained (units in percentage of hospitals providing at least some charity care): 57.4 56.4 53.2 65.6 59.0 64.7 70.1 64.7 53.5 78.2 Assume that the population x values an approximetely normal distribution. a) Use a calculater with mean and sample deviation keys to find the sample mean percentage x bar and sample standard deviation s. ( Round answers to one decimal place) A) x bar= _____________% s =_______________% B) Find a 90% Confidence Interval for the population average Mu of the percentage of hospitals providing at least some charity care. (Round to one decimal place.) Lower Limit_______________% Upper Limit_______________%
What percentage of hospitals provide at least some charity care? Based on a random sample of hospital reports of eastern states, the following information is obtained (units in percentage of hospitals providing at least some charity care):
57.4 56.4 53.2 65.6 59.0 64.7 70.1 64.7 53.5 78.2
Assume that the population x values an approximetely normal distribution.
a) Use a calculater with mean and sample deviation keys to find the sample mean percentage x bar and sample standard deviation s. ( Round answers to one decimal place)
A) x bar= _____________%
s =_______________%
B) Find a 90% Confidence Interval for the population average Mu of the percentage of hospitals providing at least some charity care. (Round to one decimal place.)
Lower Limit_______________%
Upper Limit_______________%
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