Interval estimate of the mean amount of? nitrogen

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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: 0.06?, 0.18?, 0.11, 0.15?, 0.17?, 0.18?, 0.09, 0.15. Assuming that this sample is representative of the cars in? use, construct a 98?% confidence interval estimate of the mean amount of? nitrogen-oxide emissions for all cars. 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.

Reference no: EM132857745

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