(b) Use these data to find an approxin interval for p. 7.3-4. Let p equal the proportion of Americans who favor the death penalty. If a random sample of n Americans yielded y penalty, find an approximate 95% confidence interval for p. 1234 %3D 864 who favored the death %3D thot

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Chapter1: Combinatorial Analysis
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7.3-4

Use the included equation.

7.3-3. Let p the of who suf-
n2
confidence int
(c) Use Equation 73-4 to find an app
confidence interval for p.
(d) Use 73-5 to find an 90%
(d) Use Equation 73-5 to find an approximate 90%
confidence interval for p.
won
(e) Find a one-sided approximate 90% confidence
interval for p that provides a lower bound for p.
7.3-
est
to
7.3-3. Let p equal the proportion of triathletes who suf-
fered a training-related overuse injury during the past
year. Out of 330 randomly selected triathletes, 167 indi-
cated that they had suffered such an injury during the past
)
year.
(a) Use these data to give a point estimate of p.
(b) Use these data to find an approximate 90% confidence
interval for p.
7.3-4. Let p equal the proportion of Americans who favor
the death penalty. If a random sample of n
Americans yielded y
penalty, find an approximate 95% confidence interval
for p.
1234
864 who favored the death
%3D
7.3-5. Public health officials in a large city decided that
if compelling evidence could be presented that less than
90% of children under six years of age in the city had
received the DPT vaccine, then they would carry out an
expensive immunization program throughout the city. A
random sample was taken of 537 children under six years
of age in the city; of these, 460 had been immunized for
DPT. Obtain a two-sided approximate 95% confidence
Transcribed Image Text:7.3-3. Let p the of who suf- n2 confidence int (c) Use Equation 73-4 to find an app confidence interval for p. (d) Use 73-5 to find an 90% (d) Use Equation 73-5 to find an approximate 90% confidence interval for p. won (e) Find a one-sided approximate 90% confidence interval for p that provides a lower bound for p. 7.3- est to 7.3-3. Let p equal the proportion of triathletes who suf- fered a training-related overuse injury during the past year. Out of 330 randomly selected triathletes, 167 indi- cated that they had suffered such an injury during the past ) year. (a) Use these data to give a point estimate of p. (b) Use these data to find an approximate 90% confidence interval for p. 7.3-4. Let p equal the proportion of Americans who favor the death penalty. If a random sample of n Americans yielded y penalty, find an approximate 95% confidence interval for p. 1234 864 who favored the death %3D 7.3-5. Public health officials in a large city decided that if compelling evidence could be presented that less than 90% of children under six years of age in the city had received the DPT vaccine, then they would carry out an expensive immunization program throughout the city. A random sample was taken of 537 children under six years of age in the city; of these, 460 had been immunized for DPT. Obtain a two-sided approximate 95% confidence
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