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 1500 American adults if they believe there was a conspiracy in the assassination and it found that 1180 believe there was a conspiracy.  Calculate a 91% 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
Section10.1: Measures Of Center
Problem 14PPS
icon
Related questions
Question
100%

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 1500 American adults if they believe there was a conspiracy in the assassination and it found that 1180 believe there was a conspiracy.  Calculate a 91% confidence interval for the percentage of all Americans who believe in this conspiracy.

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.
ON > 20n
Oo is unknown.
On(1-p) > 10
o is known.
On(p) > 10
Check those assumptions:
1. np=
2. n (1-P)=
3. N=
which is ? ✓
which is ? ✓
which is ? ✓
If no N is given in the problem, use 1000000
? ✓
N: Name the procedure
The conditions are met to use a Select an answer
I: Interval and point estimate
The symbol and value of the point estimate on this problem are as follows:
Leave answer as a fraction.
Transcribed Image Text: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. ON > 20n Oo is unknown. On(1-p) > 10 o is known. On(p) > 10 Check those assumptions: 1. np= 2. n (1-P)= 3. N= which is ? ✓ which is ? ✓ which is ? ✓ If no N is given in the problem, use 1000000 ? ✓ N: Name the procedure The conditions are met to use a Select an answer I: Interval and point estimate The symbol and value of the point estimate on this problem are as follows: Leave answer as a fraction.
I: Interval and point estimate
The symbol and value of the point estimate on this problem are as follows:
Leave answer as a fraction.
?v=
The interval estimate for? ✓is
Round endpoints to 3 decimal places.
C: Conclusion
• We are
Select an answer
is between
% confident that
% and
]₂[
%
]
Transcribed Image Text:I: Interval and point estimate The symbol and value of the point estimate on this problem are as follows: Leave answer as a fraction. ?v= The interval estimate for? ✓is Round endpoints to 3 decimal places. C: Conclusion • We are Select an answer is between % confident that % and ]₂[ % ]
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 6 steps with 23 images

Blurred answer
Recommended textbooks for you
Glencoe Algebra 1, Student Edition, 9780079039897…
Glencoe Algebra 1, Student Edition, 9780079039897…
Algebra
ISBN:
9780079039897
Author:
Carter
Publisher:
McGraw Hill
Algebra & Trigonometry with Analytic Geometry
Algebra & Trigonometry with Analytic Geometry
Algebra
ISBN:
9781133382119
Author:
Swokowski
Publisher:
Cengage
Holt Mcdougal Larson Pre-algebra: Student Edition…
Holt Mcdougal Larson Pre-algebra: Student Edition…
Algebra
ISBN:
9780547587776
Author:
HOLT MCDOUGAL
Publisher:
HOLT MCDOUGAL
Algebra: Structure And Method, Book 1
Algebra: Structure And Method, Book 1
Algebra
ISBN:
9780395977224
Author:
Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Publisher:
McDougal Littell
Big Ideas Math A Bridge To Success Algebra 1: Stu…
Big Ideas Math A Bridge To Success Algebra 1: Stu…
Algebra
ISBN:
9781680331141
Author:
HOUGHTON MIFFLIN HARCOURT
Publisher:
Houghton Mifflin Harcourt
College Algebra (MindTap Course List)
College Algebra (MindTap Course List)
Algebra
ISBN:
9781305652231
Author:
R. David Gustafson, Jeff Hughes
Publisher:
Cengage Learning