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):

57.3 | 56.3 | 52.8 | 66.4 | 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 | % |

Answer #1

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): 57.3 56.3 53.1
66.3 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...

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
56.4
53.1
66.4
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...

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):
56.5
56.1
53.3
66.4
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...

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):
57.4
56.3
53
65.7
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...

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 56.1 53.2
65.7 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...

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
55.7
52.9
65.7
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...

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):
57.4
55.8
53.3
65.9
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...

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
55.8
52.7
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...

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 53.4 66
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...

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): 56.5 56.5 52.5
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...

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