Select all that apply. 10 points In March 2015, the Public Policy Institute of California (PPIC) surveyed 7525 likely voters living in California. In the survey, respondents were asked about global warming. PPIC researchers are interested in the difference in viewpoints across racial/ethnic groups. PPIC results show that 75% of Latinos view global warming as a serious problem, and 46% of whites view global warming as a serious problem. Using the data from the survey, we calculate the sample difference in global warming viewpoints for Latino respondents and white respondents to be 29% = 0.29. The 95% confidence interval based on this sample difference is (0.275, 0.305). Which of the following is a valid conclusion? Check all that apply. A. We are 95% confident that the proportion of Latinos who view global warming as a serious problem is about 27.5% to 30.5% lower than the proportion of whites who view global warming as a serious problem. B. We are 95% confident that the true difference in proportion of Latinos who view global warming as a serious problem and whites who view global warming as a serious problem is 27.5% to 30.5%. C. We are 95% confident that the difference between Latino and white opinions about the severity of global warming is 29% with a margin of error of 1.5%.
Select all that apply. 10 points In March 2015, the Public Policy Institute of California (PPIC) surveyed 7525 likely voters living in California. In the survey, respondents were asked about global warming. PPIC researchers are interested in the difference in viewpoints across racial/ethnic groups. PPIC results show that 75% of Latinos view global warming as a serious problem, and 46% of whites view global warming as a serious problem. Using the data from the survey, we calculate the sample difference in global warming viewpoints for Latino respondents and white respondents to be 29% = 0.29. The 95% confidence interval based on this sample difference is (0.275, 0.305). Which of the following is a valid conclusion? Check all that apply. A. We are 95% confident that the proportion of Latinos who view global warming as a serious problem is about 27.5% to 30.5% lower than the proportion of whites who view global warming as a serious problem. B. We are 95% confident that the true difference in proportion of Latinos who view global warming as a serious problem and whites who view global warming as a serious problem is 27.5% to 30.5%. C. We are 95% confident that the difference between Latino and white opinions about the severity of global warming is 29% with a margin of error of 1.5%.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Question 6
oli.cmu.edu
Select all that apply.
10 points
In March 2015, the Public Policy Institute of California (PPIC) surveyed
7525 likely voters living in California. In the survey, respondents were
asked about global warming. PPIC researchers are interested in the difference in viewpoints
across racial/ethnic groups. PPIC results show that 75% of Latinos view global warming as a
serious problem, and 46% of whites view global warming as a serious problem.
Using the data from the survey, we calculate the sample difference in global warming viewpoints
for Latino respondents and white respondents to be 29% = 0.29. The 95% confidence interval
based on this sample difference is (0.275, 0.305).
Which of the following is a valid conclusion? Check all that apply.
A.
We are 95% confident that the proportion of Latinos who view global warming as a
serious problem is about 27.5% to 30.5% lower than the proportion of whites who view
global warming as a serious problem.
B. We are 95% confident that the true difference in proportion of Latinos who view
global warming as a serious problem and whites who view global warming as a serious
problem is 27.5% to 30.5%.
C. We are 95% confident that the difference between Latino and white opinions about
the severity of global warming is 29% with a margin of error of 1.5%.
Question 7
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