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In a sample of sevencars, each car was tested fornitrogen-oxide emissions(in grams permile) and the following results wereobtained: 0.16,0.17,0.15,0.12,0.18, 0.06, 0.05.Assuming that this sample is
In a sample of sevencars, each car was tested fornitrogen-oxide emissions(in grams permile) and the following results wereobtained: 0.16,0.17,0.15,0.12,0.18, 0.06, 0.05.Assuming that this sample is representative of the cars inuse, construct a 98% confidence interval estimate of the mean amount ofnitrogen-oxide emissions for all cars. If the EPA requires thatnitrogen-oxide emissions be less than 0.165 g divided by mig/mi, can we safely conclude that this requirement is beingmet?
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