Homework SourseIn a sample of 7 cars each car was tested for nitrogen oxide
In a sample of 7 cars, each car was tested for nitrogen oxide emissions. (in grams per mile) & the following results were found: 0.17, 0.11, 0.18, 0.07, 0.18, 0.16, 0.06. Assuming this sample is representative of the cars in use, construct a 98% confidence interval estimate of the mean amount of nitrogen oxide for all cars
? g/mi < mean < ? g/mi (round 3 dp)
Also, can we safely conclude that the requirement that nitrogen oxide emissions be less than 0.165 g/mi is met?
A) no - confidence interval does not contain 0.165 g/mi.
B) yes - we can definitely conclude that the requirement is met for all cars
C) yes - confidence interval does contain 0.165
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 7 cars, each car was tested for nitrogen oxide emissions. (in grams per mile) & the following results were found: 0.17, 0.11, 0.18, 0.07, 0.18, 0.16, 0.06. Assuming this sample is representative of the cars in use, construct a 98% confidence interval estimate of the mean amount of nitrogen oxide for all cars
? g/mi < mean < ? g/mi (round 3 dp)
Also, can we safely conclude that the requirement that nitrogen oxide emissions be less than 0.165 g/mi is met?
A) no - confidence interval does not contain 0.165 g/mi.
B) yes - we can definitely conclude that the requirement is met for all cars
C) yes - confidence interval does contain 0.165
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 7 cars, each car was tested for nitrogen oxide emissions. (in grams per mile) & the following results were found: 0.17, 0.11, 0.18, 0.07, 0.18, 0.16, 0.06. Assuming this sample is representative of the cars in use, construct a 98% confidence interval estimate of the mean amount of nitrogen oxide for all cars
? g/mi < mean < ? g/mi (round 3 dp)
Also, can we safely conclude that the requirement that nitrogen oxide emissions be less than 0.165 g/mi is met?
A) no - confidence interval does not contain 0.165 g/mi.
B) yes - we can definitely conclude that the requirement is met for all cars
C) yes - confidence interval does contain 0.165
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.
Solution
