In 2001, the polls found that 81% of American adults believed that there was a conspiracy in the death of President Kennedy. Assume a recent poll asked 1780 American adults if they believe there was a conspiracy in the assassination and it found that 1484 believe there was a conspiracy. Calculate a 97% confidence interval for the percentage of all Americans who believe in this conspiracy.
In 2001, the polls found that 81% of American adults believed that there was a conspiracy in the death of President Kennedy. Assume a recent poll asked 1780 American adults if they believe there was a conspiracy in the assassination and it found that 1484 believe there was a conspiracy. Calculate a 97% confidence interval for the percentage of all Americans who believe in this conspiracy.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section: Chapter Questions
Problem 13PT
Related questions
Question
In 2001, the polls found that 81% of American adults believed that there was a conspiracy in the death of President Kennedy. Assume a recent poll asked 1780 American adults if they believe there was a conspiracy in the assassination and it found that 1484 believe there was a conspiracy. Calculate a 97% confidence interval for the percentage of all Americans who believe in this conspiracy.
![In 2001, the polls found that 81% of American adults believed that there was a conspiracy in the death of
President Kennedy. Assume a recent poll asked 1780 American adults if they believe there was a conspiracy
in the assassination and it found that 1484 believe there was a conspiracy. Calculate a 97% confidence
interval for the percentage of all Americans who believe in this conspiracy.
P: Parameter
What is the correct parameter symbol for this problem?
? ✓
What is the wording of the parameter in the context of this problem?
Select an answer
A: Assumptions
• Since Select an answer information was collected from each object, what conditions do we need
to check? Check all that apply.
On > 30 or normal population.
N> 20n
On(1-p) > 10
o is known.
n(p) > 10
Oo is unknown.
Check those assumptions:
1. np=
2. n (1 − p)=
which is ? ✓
which is ? ✓](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F53a75494-309e-42b0-a529-a9f63371544d%2Fc674cd53-9bb1-4a77-b70c-697e395ac16c%2Fo54w57_processed.png&w=3840&q=75)
Transcribed Image Text:In 2001, the polls found that 81% of American adults believed that there was a conspiracy in the death of
President Kennedy. Assume a recent poll asked 1780 American adults if they believe there was a conspiracy
in the assassination and it found that 1484 believe there was a conspiracy. Calculate a 97% confidence
interval for the percentage of all Americans who believe in this conspiracy.
P: Parameter
What is the correct parameter symbol for this problem?
? ✓
What is the wording of the parameter in the context of this problem?
Select an answer
A: Assumptions
• Since Select an answer information was collected from each object, what conditions do we need
to check? Check all that apply.
On > 30 or normal population.
N> 20n
On(1-p) > 10
o is known.
n(p) > 10
Oo is unknown.
Check those assumptions:
1. np=
2. n (1 − p)=
which is ? ✓
which is ? ✓
![1. np=
2. n(1-p)=
3. N=
which is ? ✓
If no N is given in the problem, use 1000000
?v=
which is ? ✓
N: Name the procedure
The conditions are met to use a Select an answer
which is ? ✓
I: Interval and point estimate
The symbol and value of the point estimate on this problem are as follows:
• We are
Select an answer
is between
The interval estimate for ? ✓is
Leave answer as a fraction.
Round endpoints to 3 decimal places.
C: Conclusion
% confident that
% and
%](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F53a75494-309e-42b0-a529-a9f63371544d%2Fc674cd53-9bb1-4a77-b70c-697e395ac16c%2Flgl1df5_processed.png&w=3840&q=75)
Transcribed Image Text:1. np=
2. n(1-p)=
3. N=
which is ? ✓
If no N is given in the problem, use 1000000
?v=
which is ? ✓
N: Name the procedure
The conditions are met to use a Select an answer
which is ? ✓
I: Interval and point estimate
The symbol and value of the point estimate on this problem are as follows:
• We are
Select an answer
is between
The interval estimate for ? ✓is
Leave answer as a fraction.
Round endpoints to 3 decimal places.
C: Conclusion
% confident that
% and
%
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