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In a sample of seven cars, each car was tested for nitrogen-oxide emissions (in grams per mile) and the following results were obtained: 0.19, 0.06, 0.09, 0.18, 0.18, 0.13, 0.08. Assuming that this sample is representative of the cars in use and the population is normally distributed, construct a 98% confidence interval estimate of the mean amount of nitrogen-oxide emissions for all cars. g/mi < µ <, g/mi If the EPA requires that nitrogen-oxide emissions be less than 0.165 g/mi, can we safely conclude that this requirement is being met? O A. Yes, because the confidence interval contains 0.165 g/mi. O B. Yes, we can definitely conclude that the requirement is met for all cars. O C. No, because the confidence interval does not contain 0.165 g/mi. O D. No, it is possible that the requirement is being met, but it is also very possible that the mean is not less than 0.165 g/mi.

In a sample of seven cars, each car was tested for nitrogen-oxide emissions (in grams per mile) and the following results were obtained: 0.19, 0.06, 0.09, 0.18, 0.18, 0.13, 0.08. Assuming that this sample is representative of the cars in use and the population is normally distributed, construct a 98% confidence interval estimate of the mean amount of nitrogen-oxide emissions for all cars. g/mi < µ <, g/mi If the EPA requires that nitrogen-oxide emissions be less than 0.165 g/mi, can we safely conclude that this requirement is being met? O A. Yes, because the confidence interval contains 0.165 g/mi. O B. Yes, we can definitely conclude that the requirement is met for all cars. O C. No, because the confidence interval does not contain 0.165 g/mi. O D. No, it is possible that the requirement is being met, but it is also very possible that the mean is not less than 0.165 g/mi.

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 19PFA
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9. In a sample of seven cars, each car was tested for nitrogen-oxide emissions (in grams per mile) and the following results were obtained: 0.19, 0.06, 0.09, 0.18, 0.18, 0.13, 0.08. Assuming that this sample is representative of the cars in use and the population is normally distributed, construct a 98% confidence interval estimate of the mean amount of nitrogen-oxide emissions for all cars. g/mi < µ <, g/mi If the EPA requires that nitrogen-oxide emissions be less than 0.165 g/mi, can we safely conclude that this requirement is being met? OA. Yes, because the confidence interval contains 0.165 g/mi. O B. Yes, we can definitely conclude that the requirement is met for all cars. O C. No, because the confidence interval does not contain 0.165 g/mi. O D. No, it is possible that the requirement is being met, but it is also very possible that the mean is not less than 0.165 g/mi.
Transcribed Image Text:9. In a sample of seven cars, each car was tested for nitrogen-oxide emissions (in grams per mile) and the following results were obtained: 0.19, 0.06, 0.09, 0.18, 0.18, 0.13, 0.08. Assuming that this sample is representative of the cars in use and the population is normally distributed, construct a 98% confidence interval estimate of the mean amount of nitrogen-oxide emissions for all cars. g/mi < µ <, g/mi If the EPA requires that nitrogen-oxide emissions be less than 0.165 g/mi, can we safely conclude that this requirement is being met? OA. Yes, because the confidence interval contains 0.165 g/mi. O B. Yes, we can definitely conclude that the requirement is met for all cars. O C. No, because the confidence interval does not contain 0.165 g/mi. O D. No, it is possible that the requirement is being met, but it is also very possible that the mean is not less than 0.165 g/mi.
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