Question
In: Statistics and Probability
A 2010 poll asked people in the United States whether they were satisfied with their financial...
A
2010
poll asked people in the United States whether they were satisfied with their financial situation. A total of
338
out of
833
people said they were satisfied. The same question was asked in
2012
, and
304
out of
1156
people said they were satisfied.
Part: 0 / 2
0 of 2 Parts Complete
Part 1 of 2
(a) Construct a
99.8%
confidence interval for the difference between the proportions of adults who said they were satisfied in
2012
and
2010
. Let
p1
denote the proportion of adults who said they were satisfied in
2010
.Use tables to find the critical value and round the answer to at least three decimal places.
| A
99.8% confidence interval for the difference between the proportions of adults who said they were satisfied in2012 and2010 is<<−p1p2. |
Solutions
orchestra answered 1 year agoRelated Solutions
A 2010 poll asked people in the United States whether they were satisfied with their financial...
A
2010
poll asked people in the United States whether they were
satisfied with their financial situation. A total of
338
out of
833
people said they were satisfied. The same question was asked
in
2012
, and
304
out of
1156
people said they were satisfied.
Part 1 of 2
Your Answer is correct
(a) Construct a
99.8%
confidence interval for the difference between the proportions
of adults who said they were satisfied in
2012
and
2010
. Let...
Satisfied?A poll taken by the General Social Survey in 2010 asked people in the United States...
Satisfied?A poll taken by the General Social Survey in 2010
asked people in the United States whether they were satisfied with
their financial situation. A total of 478 out of 2038 people said
they were satisfied. The same question was asked in 2014, and 698
out of 2532 people said they were satisfied.
a. Construct a 95% confidence interval for the difference
between the proportion of adults who said they were satisfied in
2014 and the proportion in 2010.
b....
In Tokyo, 834 Japanese people were asked in a poll on whether they thought the Olympics...
In Tokyo, 834 Japanese people were asked in a poll on whether
they thought the Olympics reduced international tension, increased
international tension, or neither. 425 of them said that they
thought the Olympics reduced international tension. Calculate a
97.5% confidence interval for the proportion of those who believed
this.
In a recent Gallup poll, 1003 randomly selected adults in the United States were asked if...
In a recent Gallup poll, 1003 randomly selected adults in the
United States were asked if they have a gun in their home, and
37.2% of them answered “yes”.
Construct a 95% confidence interval estimate of the percentage
of all adults who would answer “yes” when asked if they have a gun
in their home.
[Write your answer as a complete sentence]
a gallup poll conducted in 2012 asked people do you think the united states benefit from...
a
gallup poll conducted in 2012 asked people do you think the united
states benefit from having a clwss of rivh people. in reponse
80^
In a survey of 3135 adults in a nation, a poll asked people whether they smoked...
In a survey of 3135 adults in a nation, a poll asked people
whether they smoked cigarettes and whether they always wear a seat
belt in a car. The table available below shows the results of the
survey. For each activity, we define a success as finding an
individual who participates in the hazardous activity. Complete
parts (a) and (b) below. LOADING... Click the icon to view the
survey results. (a) Why is this a dependent sample? A. This is...
In a survey of 3135 adults in a nation, a poll asked people whether they smoked...
In a survey of 3135 adults in a nation, a poll asked people
whether they smoked cigarettes and whether they always wear a seat
belt in a car. The table available below shows the results of the
survey. For each activity, we define a success as finding an
individual who participates in the hazardous activity. Complete
parts (a) and (b) below. LOADING... Click the icon to view the
survey results. (a) Why is this a dependent sample? A. This is...
A poll conducted in 2012 asked a random sample of 1358 adults in the United States...
A poll conducted in 2012 asked a random sample of 1358 adults in
the United States how much confidence they had in banks and other
financial institutions. A total of 149 adults said that they had a
great deal of confidence. An economist claims that less than 13% of
U.S. adults have a great deal of confidence in banks. Can you
conclude that the economist's claim is true? Use both α=0.10 and
α=0.01 levels of significance and the P-value method...
The highest and lowest birth rates in the United States in 2010 were in Utah and...
The highest and lowest birth rates in the United States in 2010
were in Utah and Maine, respectively. Utah reported 52,258 births
with a population of about 2.8 million people. Maine reported
12,970 births with a population of about 1.3 million people. Use
this data to answer the following questions.
a) On average, how many people were born each day of the year in
Utah?
b) On average, how many people were born each day of the year in
Maine?...
In a recent poll, 120 people were asked if they liked dogs, and 60% said they...
In a recent poll, 120 people were asked if they liked dogs, and
60% said they did. Find the margin of error of this poll, at the
90% confidence level.
Give your answer to three decimals
ADVERTISEMENT
ADVERTISEMENT
Latest Questions
- Cryptography is used heavily in internet communications. True or false? Explain
- Suppose Rialto is the only movie cinema in a small college town, so it is essentially...
- With VMI, members of the supply chain share planning, demand, forecasting, and inventory information.
- Large lots are desirable in supply chain coordination despite increasing holding costs.
- ***Convert the C++ to Python*** #include <iostream> using std::cout; using std::cin; using std::endl; int charClass; char...
- Make-or-Buy Decision Fremont Computer Company has been purchasing carrying cases for its portable computers at a...
- The following costs were incurred for the single product produced during the first year of operations...
ADVERTISEMENT