In 2003, an organization surveyed 1,510 adult Americans and asked about a certain war, "Do you believe the United States made the right or wrong decision to use military force?" Of the 1,510 adult Americans surveyed, 1,080 stated the United States made the right decision. In 2008, the organization asked the same question of 1,510 adult Americans and found that 580 believed the United States made the right decision. Construct and interpret a 90% confidence interval for the difference between the two population proportions, P2003 - P2008. The lower bound of a 90% confidence interval is (Round to three decimal places as needed.) The upper bound of a 90% confidence interval is (Round to three decimal places as needed.) Interpret the 90% confidence interval for the difference between the two population proportions, P2003 - 2008. Choose the correct answer below. A. There is 10% confidence that the difference in the proportion of adult Americans from 2003 to 2008 who believe the United States made the right decision to use military force in the country is between the lower and upper bounds of the interval. B. There is 90% confidence that the difference in the proportion of adult Americans from 2003 to 2008 who believe the United States made the right decision to use military force in the country is greater than the lower bound. C. There is 90% confidence that the difference in the proportion of adult Americans from 2003 to 2008 who believe the United States made the right decision to use military force in the country is between the lower and upper bounds of the interval.
In 2003, an organization surveyed 1,510 adult Americans and asked about a certain war, "Do you believe the United States made the right or wrong decision to use military force?" Of the 1,510 adult Americans surveyed, 1,080 stated the United States made the right decision. In 2008, the organization asked the same question of 1,510 adult Americans and found that 580 believed the United States made the right decision. Construct and interpret a 90% confidence interval for the difference between the two population proportions, P2003 - P2008. The lower bound of a 90% confidence interval is (Round to three decimal places as needed.) The upper bound of a 90% confidence interval is (Round to three decimal places as needed.) Interpret the 90% confidence interval for the difference between the two population proportions, P2003 - 2008. Choose the correct answer below. A. There is 10% confidence that the difference in the proportion of adult Americans from 2003 to 2008 who believe the United States made the right decision to use military force in the country is between the lower and upper bounds of the interval. B. There is 90% confidence that the difference in the proportion of adult Americans from 2003 to 2008 who believe the United States made the right decision to use military force in the country is greater than the lower bound. C. There is 90% confidence that the difference in the proportion of adult Americans from 2003 to 2008 who believe the United States made the right decision to use military force in the country is between the lower and upper bounds of the interval.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.6: Summarizing Categorical Data
Problem 30PPS
Related questions
Question
Transcribed Image Text:In 2003, an organization surveyed 1,510 adult Americans and asked about a certain war, "Do you believe the United
States made the right or wrong decision to use military force?" Of the 1,510 adult Americans surveyed, 1,080 stated the
United States made the right decision. In 2008, the organization asked the same question of 1,510 adult Americans and
found that 580 believed the United States made the right decision. Construct and interpret a 90% confidence interval for
the difference between the two population proportions, P2003 - P2008.
The lower bound of a 90% confidence interval is
(Round to three decimal places as needed.)
The upper bound of a 90% confidence interval is
(Round to three decimal places as needed.)
Interpret the 90% confidence interval for the difference between the two population proportions, P2003 - 2008- Choose
the correct answer below.
A. There is 10% confidence that the difference in the proportion of adult Americans from 2003 to 2008 who believe
the United States made the right decision to use military force in the country is between the lower and upper
bounds of the interval.
B. There is 90% confidence that the difference in the proportion of adult Americans from 2003 to 2008 who believe
the United States made the right decision to use military force in the country is greater than the lower bound.
C. There is 90% confidence that the difference in the proportion of adult Americans from 2003 to 2008 who believe
the United States made the right decision to use military force in the country is between the lower and upper
bounds of the interval.
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by step
Solved in 3 steps with 1 images
Recommended textbooks for you
Glencoe Algebra 1, Student Edition, 9780079039897…
Algebra
ISBN:
9780079039897
Author:
Carter
Publisher:
McGraw Hill
College Algebra (MindTap Course List)
Algebra
ISBN:
9781305652231
Author:
R. David Gustafson, Jeff Hughes
Publisher:
Cengage Learning
Glencoe Algebra 1, Student Edition, 9780079039897…
Algebra
ISBN:
9780079039897
Author:
Carter
Publisher:
McGraw Hill
College Algebra (MindTap Course List)
Algebra
ISBN:
9781305652231
Author:
R. David Gustafson, Jeff Hughes
Publisher:
Cengage Learning