A TV news reporter says that a proposed constitutional amendment is likely to win approval in the upcoming election because a poll of 425 likely voters indicated that 52% would vote in favor. The reporter goes on to say that the margin of error for this poll was 4%. Complete parts a and b below. a) Explain why the poll is actually inconclusive. Choose the correct answer below. O A. The poll is inconclusive because the margin of error is too large. O B. The poll is inconclusive because the sample size is too small. OC. The poll is inconclusive because the standard error of the sample proportion is less than 0.50. O D. The poll is inconclusive because 50% is included in the confidence interval. b) What confidence level did the pollsters use? The pollsters used a V% confidence level. 95 99 90 98
A TV news reporter says that a proposed constitutional amendment is likely to win approval in the upcoming election because a poll of 425 likely voters indicated that 52% would vote in favor. The reporter goes on to say that the margin of error for this poll was 4%. Complete parts a and b below. a) Explain why the poll is actually inconclusive. Choose the correct answer below. O A. The poll is inconclusive because the margin of error is too large. O B. The poll is inconclusive because the sample size is too small. OC. The poll is inconclusive because the standard error of the sample proportion is less than 0.50. O D. The poll is inconclusive because 50% is included in the confidence interval. b) What confidence level did the pollsters use? The pollsters used a V% confidence level. 95 99 90 98
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section: Chapter Questions
Problem 5CT
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