tervals8.21 Stemwas sCSHarrthe sHere, X refers to the number of the respondents whoas Rnssiawere in favor.a. Show how to obtain the value reported under"Sample p.b. Interpret the confidence interval reported, in contextpeoscreIfintetheehovсеc. Explain what the "95% confidence" refers to.by describing the long-run interpretation.asedp.d. Can you conclude that more than half of all Americanadults were in favor? Why?8.17 Oppose death penalty Refer to the previous exercise.TRY Show how you can get a 95% confidence interval for theproportion of American adults who were opposed to thedeath penalty from the confidence interval stated in theprevious exercise for the proportion in favor. (Hint:proportion opposed is 1 minus the proportion in lav8.18 Stem cell research A Harris poll of a random sample of2113 adults in the United States in October 2010 reportedthat 72% of those polled believe that stem cell researchhas merit. (Source: www.harrisinteractive.com/vault/Harris-Interactive-Poll-HealthDay-2010-10.pdl./results, presented using MINITAB software, areincinegs.tsonel-8.22TheationXNSample p95% CI15212.1.1.37007, 0.7390 a. Estimate the population proportion who would answer(ayesb. Find the margin of error for a 95% confidence intervalfor this estimate.8.20 B22c. Find a 95% confidence interval for that proportion andinterpret.d. State and check the assumptions needed for the intervalin part c to be valid.7pinfoMake industry help environment? When the 2006 GSSasked subjects whether it should or should not be thegovernment's responsibility to impose strict laws to makeindustry do less damage to the environment (variableGRNLAWS), 1403 of 1497 subjects said yes.8.15tacaCCa. What assumptions are made to construct a 95%confidence interval for the population proportionwho would say yes? Do they seem satisfied here?b. Construct the 95% confidence interval. Interpret incontext. Can you conclude whether a majority orminority of the population would answer yes?8.16 Favor death penalty In the 2012 General Social Survey,respondents were asked whether they favored or opposedthe death penalty for people convicted of murder. Softwareshows resultsSample pSample95% CIX4www.ha0.648575(0.626665, 0.670484)182411183Beliefs_128E

Question
Asked Nov 8, 2019

8.16 D

tervals
8.21 Stem
was s
CS
Harr
the s
Here, X refers to the number of the respondents who
as R
n
ssia
were in favor.
a. Show how to obtain the value reported under
"Sample p.
b. Interpret the confidence interval reported, in context
peo
scre
If
inte
the
e
hov
се
c. Explain what the "95% confidence" refers to.
by describing the long-run interpretation.
ased
p.
d. Can you conclude that more than half of all American
adults were in favor? Why?
8.17 Oppose death penalty Refer to the previous exercise.
TRY Show how you can get a 95% confidence interval for the
proportion of American adults who were opposed to the
death penalty from the confidence interval stated in the
previous exercise for the proportion in favor. (Hint:
proportion opposed is 1 minus the proportion in lav
8.18 Stem cell research A Harris poll of a random sample of
2113 adults in the United States in October 2010 reported
that 72% of those polled believe that stem cell research
has merit. (Source: www.harrisinteractive.com/vault/
Harris-Interactive-Poll-HealthDay-2010-10.pdl./
results, presented using MINITAB software, are
in
cine
gs.
ts
on
el-
8.22
The
ation
X
N
Sample p
95% CI
1521
2.1.1.3
7007, 0.7390
help_outline

Image Transcriptionclose

tervals 8.21 Stem was s CS Harr the s Here, X refers to the number of the respondents who as R n ssia were in favor. a. Show how to obtain the value reported under "Sample p. b. Interpret the confidence interval reported, in context peo scre If inte the e hov се c. Explain what the "95% confidence" refers to. by describing the long-run interpretation. ased p. d. Can you conclude that more than half of all American adults were in favor? Why? 8.17 Oppose death penalty Refer to the previous exercise. TRY Show how you can get a 95% confidence interval for the proportion of American adults who were opposed to the death penalty from the confidence interval stated in the previous exercise for the proportion in favor. (Hint: proportion opposed is 1 minus the proportion in lav 8.18 Stem cell research A Harris poll of a random sample of 2113 adults in the United States in October 2010 reported that 72% of those polled believe that stem cell research has merit. (Source: www.harrisinteractive.com/vault/ Harris-Interactive-Poll-HealthDay-2010-10.pdl./ results, presented using MINITAB software, are in cine gs. ts on el- 8.22 The ation X N Sample p 95% CI 1521 2.1.1.3 7007, 0.7390

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a. Estimate the population proportion who would answer
(a
yes
b. Find the margin of error for a 95% confidence interval
for this estimate.
8.20 B
22
c. Find a 95% confidence interval for that proportion and
interpret.
d. State and check the assumptions needed for the interval
in part c to be valid.
7p
in
fo
Make industry help environment? When the 2006 GSS
asked subjects whether it should or should not be the
government's responsibility to impose strict laws to make
industry do less damage to the environment (variable
GRNLAWS), 1403 of 1497 subjects said yes.
8.15
ta
ca
CC
a. What assumptions are made to construct a 95%
confidence interval for the population proportion
who would say yes? Do they seem satisfied here?
b. Construct the 95% confidence interval. Interpret in
context. Can you conclude whether a majority or
minority of the population would answer yes?
8.16 Favor death penalty In the 2012 General Social Survey,
respondents were asked whether they favored or opposed
the death penalty for people convicted of murder. Software
shows results
Sample p
Sample
95% CI
X
4www.ha
0.648575
(0.626665, 0.670484)
1824
1
1183
Beliefs_12
8E
help_outline

Image Transcriptionclose

a. Estimate the population proportion who would answer (a yes b. Find the margin of error for a 95% confidence interval for this estimate. 8.20 B 22 c. Find a 95% confidence interval for that proportion and interpret. d. State and check the assumptions needed for the interval in part c to be valid. 7p in fo Make industry help environment? When the 2006 GSS asked subjects whether it should or should not be the government's responsibility to impose strict laws to make industry do less damage to the environment (variable GRNLAWS), 1403 of 1497 subjects said yes. 8.15 ta ca CC a. What assumptions are made to construct a 95% confidence interval for the population proportion who would say yes? Do they seem satisfied here? b. Construct the 95% confidence interval. Interpret in context. Can you conclude whether a majority or minority of the population would answer yes? 8.16 Favor death penalty In the 2012 General Social Survey, respondents were asked whether they favored or opposed the death penalty for people convicted of murder. Software shows results Sample p Sample 95% CI X 4www.ha 0.648575 (0.626665, 0.670484) 1824 1 1183 Beliefs_12 8E

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It is given that the sample proportion of the respondents who are favore...

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p 0.648575

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