What percentage of hospitals provide at least some charity care? Based on a rand

Question

What percentage of hospitals provide at least some charity care? Based on a random sample of hospital reports from eastern states, the following information is obtained (units in percentage of hospitals providing at least some charity care): 57.1 55.6 53.2 66.2 59.0 64.7 70.1 64.7 53.5 78.2 Assume that the population of x values has an approximately normal distribution. (a) Use a calculator with mean and sample standard deviation keys to find the sample mean percentage x and the sample standard deviation s. (Round your answers to one decimal place) (b) Find a 90% confidence interval for the population average of the percentage of hospitals providing at least some charity care. (Round your answers to one decimal place.) lower limit upper limit Need Help?Read It Talk to a Tutor -1 points BBBasicStat8 8.3.001 My Notes Ask Your Teacher For a binomial experiment with r successes out of n trials, what value do we use as a point estimate for the probability of success p on a single trial?

Explanation / Answer

excel formulation

binomial

p^ = r/n

Please rate

57.1 55.6 53.2 66.2 59 64.7 70.1 64.7 53.5 78.2 mean 62.23 s 8.051232 df 9 t 1.833113 lower 57.56285 upper 66.89715

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