each car in a sample of seven cars was tested for nitrpgen-oxide emissions

( in grams per mile), and the results were obtained.
0.07, 0.12, 0.19 , 0.18, 0.17, 0.06, 0.18
Assuming that this sample is representative of cars in use, construct a 95% confidence interval estimate of the mean amount pf nitrogen-oxide emissions for all the cars.
round to the nearest thousandth as needed

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