Question

Score: 0 of 12 pts 1 of 4 (4 complete) HW Score: 44.33%, 22.17 of 50 pt: X 10.1.31 Question Help In a recent year, a poll asked 2142 random adult citizens of a large country how they rated economic conditions. In the poll, 15% rated the economy as Excellent/Good. A recent media outlet claimed that the percentage of citizens who felt the economy was in Excellent/Good shape was 11%. Does the poll support this claim? a) Test the appropriate hypothesis. Find a 90% confidence interval for the proportion of adults who rated the economy as Excellent/Good. Check conditions. b) Does your confidence interval provide evidence to support the claim? c) What is the significance level of the test in b? Explain. A. Ho: p 0.11 vs. HA: p 0.11 B. H: p 0.15 vs. Ha: p<0.15 OC. Ho: p 0.15 vs. HA: p#0.15 D. Ho: p 0.11 vs. H: p>0.11 Check the conditions. Which of the following conditions are satisfied? Select all that apply. A. Less than 10% of the population was sampled. B. The data are independent. c. The sample is random. D. There are more than 10 "successes" and 10 "failures." answer boxes Find a 90% confidence interval for the proportion of adults who rated the economy as Excellent/Good. Select the correct choice below and fill within your choice. O A. (Round to three decimal places as needed.) B. The conditions of a confidence interval are not satisfied.

Answer 1

hii.. for part a, we can test the hypothesis by C.I, as i mentioned about evidence of claim.

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hii.. if you have any doubt please ask by comment. please don't dislike the answer. if any doubt ask by comment i will respond. thanks...