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Clearing of the Amazon Rainforest in Brazil has been controversial the past few years, but is there a difference of opinion between the rest of
Clearing of the Amazon Rainforest in Brazil has been controversial the past few years, but is there a difference of opinion between the rest of the world and Brazilians themselves? An economist interested in this question took a random sample of 142 people from the United States; of these, 82 opposed clearing the Amazon. He also managed to find some Brazilians living in the USA. In a random sample of 22 of these Brazilians, 12 opposed clearing the Amazon. The standard error in the difference of these estimates was 0.113. a) Create a 99% confidence interval for the difference in the proportions of all Americans and Brazilians that oppose clearing the Amazon. Use America - Brazil, and round your answers to 3 decimal places: ( , ) b) Based on the results of your confidence interval from part a), should you conclude there is a difference in the proportion of Americans and the proportion of Brazilians that oppose clearing the Amazon? --Select- v , since the interval -Select- v
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