In an experiment to determine the effect of ambient temperature on the emissions of oxides of nitrogen

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In an experiment to determine the effect of ambient temperature on the emissions of oxides of nitrogen

(NOx) of diesel trucks, 10 trucks were run at temperatures of 40°F and 80°F. The emissions, in parts per billion, are presented in the following table.image text in transcribed

a. Construct a 99% confidence interval for the difference in mean emissions between trucks running at 40°F and trucks running at 80°F.

b. Based on the confidence interval, is it reasonable to believe that the mean emissions at 40°F may be the same as the mean at 80°F?

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Elementary Statistics

ISBN: 9781259969454

3rd Edition

Authors: William Navidi, Barry Monk

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