In a sample of seven cars, each car was tested for nitrogen-oxide emissions and

Q: In a sample of seven cars, each car was tested for nitrogen-oxide emissions and

The statistical software output for this problem is: One sample T confidence interval: : Mean of variable 98% confidence interval results: Hence, 98% confidence interval is: 0.063 g/mi < u < 0.189 g/mi Option D is correct. Variable Sample Mean Std. Err. DF L. Limit U. Limit var1 0.12571429 0.019982986 6 0.062914388 0.18851418

ID: 3238549 • Letter: I

Question

In a sample of seven cars, each car was tested for nitrogen-oxide emissions and the following results were obtained:

0.13, 0.19, 0.16, 0.06, 0.18, 0.08, 0.08.

assuming that this sample is representative of the cats in use, construct a 98% confidence interval estimate of the mean amount of nitrogen oxide emissions for all cars. if the PEA requires that nitrogen oxide emissions be less than 0.165g/mi, can we safely conclude that this requirement is being met?

est: Final Take Home Part 2: Chapters 7 is Question: 2 pts a sample of seven cars, each car was tested for nitrogen-oxide emissions (in grams per mile) and t epresentative of the cars in use, construct a 98% confidence interval estimate of the mean amount of an we safely conclude that this requirement is being met? lick here to view atdistribution table. lick here to view page 1 of the standard normal distribution table lick here to view page 2 of the standard normal distribution table. What is the confidence interval estimate of the mean amount nitrogen-oxide emissions for all cars? of Round to three decimal places as needed.) Can we safely conclude that the requirement that nitrogen-oxide emissions be less than 0.165 g/mi is be O A. No, because the confidence interval does not contain 0.165 g/mi O B. Yes, because the confidence interval contains 0.165 g/mi. O C. Yes, we can definitely conclude that the requirement is met for all cars. O D. No, it is possible that the requirement is being met, but it is also very possible that the mean is not Click to select your answer(s)

Explanation / Answer

The statistical software output for this problem is:

One sample T confidence interval:
: Mean of variable

98% confidence interval results:

Hence,

98% confidence interval is:

0.063 g/mi < u < 0.189 g/mi

Option D is correct.

Variable Sample Mean Std. Err. DF L. Limit U. Limit var1 0.12571429 0.019982986 6 0.062914388 0.18851418

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In a sample of seven cars, each car was tested for nitrogen-oxide emissions (in

In a sample of seven cars, each car was tested for nitrogen-oxide emissions and

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In a sample of seven cars, each car was tested for nitrogen-oxide emissions and

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