Question

What was the age distribution of nurses in Great Britain at the
time of Florence Nightingale? Suppose we have the following
information. *Note:* In 1851 there were 25,466 nurses in
Great Britain.

Age range (yr) | 20-29 | 30-39 | 40-49 | 50-59 | 60-69 | 70-79 | 80+ |

Midpoint x |
24.5 | 34.5 | 44.5 | 54.5 | 64.5 | 74.5 | 84.5 |

Percent of nurses | 5.8% | 9.3% | 19.9% | 29.4% | 25.2% | 8.8% |
1.6% |

(d) Compute the expected age μ of a British nurse contemporary
to Florence Nightingale. (Round your answer to two decimal
places.)

(e) Compute the standard deviation σ for ages of nurses shown in
the distribution. (Round your answer to two decimal places.)

Answer #1

What was the age distribution of nurses in Great Britain at the
time of Florence Nightingale? Suppose we have the following
information. Note: In 1851 there were 25,466 nurses in Great
Britain. Age range (yr) 20-29 30-39 40-49 50-59 60-69 70-79 80+
Midpoint x 24.5 34.5 44.5 54.5 64.5 74.5 84.5 Percent of nurses
5.4% 9.5% 19.9% 29.2% 24.8% 9.7% 1.5% (a) Using the age midpoints x
and the percent of nurses, do we have a valid probability
distribution? Explain....

Age
range (yr)
20-29
30-39
40-49
50-59
60-69
70-79
80+
Midpoint x
24.5
34.5
44.5
54.5
64.5
74.5
84.5
Percent of nurses
5.9%
9.6%
19.4%
29.5%
24.9%
8.7%
2.0%
(c) Find the probability that a British nurse selected at random
in 1851 would be 60 years of age or older. (Round your answer to
three decimal places.)
(d) Compute the expected age μ of a British nurse contemporary to
Florence Nightingale. (Round your answer to two decimal
places.)
yr
(e)...

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