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BartSMP
2 months ago
9

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. Group of answer choices 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. 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%. 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%.
Mathematics
1 answer:
PIT_PIT [12.4K]2 months ago
4 0
In this particular case, the confidence interval can be expressed as (0.275, 0.305). We can anticipate the proportion difference, along with calculating the margin of error, leading to two possible conclusions: We can be 95% confident that the genuine difference in the proportion of Latinos viewing global warming as a major concern compared to whites is between 27.5% and 30.5%. Additionally, we hold 95% confidence that the disparity in views on global warming severity between Latino and white respondents is 29%, with an associated margin of error of 1.5%.
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Remaining balance on Marcia's credit card = $1700

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