Question
In: Math
What percentage of hospitals provide at least some charity care? Based on a random sample of...
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):
57.2 56.1 53.1 65.8 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.)
x = %
s = %
(b) Find a 90% confidence interval for the population average μ of the percentage of hospitals providing at least some charity care. (Round your answers to one decimal place.)
lower limit %
upper limit %
Solutions
milcah answered 7 months agoRelated Solutions
What percentage of hospitals provide at least some charity care? Based on a random sample of...
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):
56.8
56.1
53.3
65.6
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...
A random sample of 5994 physicians in Colorado showed that 3062 provided at least some charity...
A random sample of 5994 physicians in Colorado showed that 3062
provided at least some charity care.
(a) Let p represent the proportion of all Colorado
physicians who provide some charity care. Find a point estimate for
p. (Round your answer to four decimal places.)
(b) Find a 99% confidence interval for p. (Round your
answers to three decimal places.)
Lower Limit = ?
Upper Limit=?
(c) Give a brief explanation of the meaning of your answer in
the context...
A random sample of 5562 physicians in Colorado showed that 3062 provided at least some charity...
A random sample of 5562 physicians in Colorado showed that 3062
provided at least some charity care (i.e., treated poor people at
no cost).
(a) Let p represent the proportion of all Colorado physicians
who provide some charity care. Find a point estimate for p. (Round
your answer to four decimal places.)
(b) Find a 99% confidence interval for p. (Round your answers to
three decimal places.) lower limit and upper limit
In a survey of 1000 large corporations, 256...
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