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Translate the statement into a confidence interval. Approximate the level of confidence. In a survey of 900 adults in a country, 80% think teaching is one of the most important jobs in the country today. The survey's margin of error is +3%. The confidence interval for the proportion is (OD (Round to three decimal places as needed.)

Translate the statement into a confidence interval. Approximate the level of confidence. In a survey of 900 adults in a country, 80% think teaching is one of the most important jobs in the country today. The survey's margin of error is +3%. The confidence interval for the proportion is (OD (Round to three decimal places as needed.)

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 22PFA
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need help kinda stuck on these 2 problems

Why is it necessary to check that np 25 and nq 2 5? O A. It is necessary to check that np 25 and nq 2 5 because the confidence intervals estimating the population proportions will overlap if these values are less than 5. O B. It is necessary to check that np 2 5 and nq 2 5 to be certain that the minimum value of the sample size, n, is met. O C. It is necessary to check that np 25 and nq 2 5 because, if either of the values are less than 5, the tails on either side of the left and right endpoints are not accounted for. O D. It is necessary to check that np 2 5 and nq 2 5 because, if either of the values are less than 5, the distribution may not be normally distributed, thus ze cannot be used to calculate the confidence interval.
Transcribed Image Text:Why is it necessary to check that np 25 and nq 2 5? O A. It is necessary to check that np 25 and nq 2 5 because the confidence intervals estimating the population proportions will overlap if these values are less than 5. O B. It is necessary to check that np 2 5 and nq 2 5 to be certain that the minimum value of the sample size, n, is met. O C. It is necessary to check that np 25 and nq 2 5 because, if either of the values are less than 5, the tails on either side of the left and right endpoints are not accounted for. O D. It is necessary to check that np 2 5 and nq 2 5 because, if either of the values are less than 5, the distribution may not be normally distributed, thus ze cannot be used to calculate the confidence interval.
Translate the statement into a confidence interval. Approximate the level of confidence. In a survey of 900 adults in a country, 80% think teaching is one of the most important jobs in the country today. The survey's margin of error is +3%. The confidence interval for the proportion is (| D (Round to three decimal places as needed.)
Transcribed Image Text:Translate the statement into a confidence interval. Approximate the level of confidence. In a survey of 900 adults in a country, 80% think teaching is one of the most important jobs in the country today. The survey's margin of error is +3%. The confidence interval for the proportion is (| D (Round to three decimal places as needed.)
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