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 ppm, are presented in the following table.Truck 40°F 80°F 0.8347 0.8152 0.7532 0.7652 0.8557 0.8426 0.7971 0.9012 0.7854 0.7643 0.8195 0.7836 0.8629 0.8827 0.74


Can you conclude that the mean emissions differ between the two temperatures?

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