Each car in a sample of seven cars was tested for nitrogen-oxide emissions

Each car in a sample of seven cars was tested for nitrogen-oxide emissions

(in grams per mile), and the following results were obtained. 0.08, 0.11,0.15, 0.13, 0.12, 0.05, 0.13. Assuming that this sample is representative of cars in use, construct a 95% confidence interval estimate of the mean amount of nitrogen-oxide emissions for all cars. Round to the nearest thousandth

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