Truck Pollution: In an experiment to determine the effect of ambient temperature on the emissions of oxides of nitrogen (NOy) of diesel trucks, ten trucks were run at temperatures of 40 F and 80 F. The emissions, in parts per billion, are presented in the following table. Truck 40 F 80 F 1 838.7 8178 2 752.8 764.9 3 8569 843.0 4 901.0 796.1 5 784.1 763.2 6 863.2 8213 7 881.3 7834 8 739.4 695.5 9 749.5 T71.6 10 848.6 795.7 Send data to Excel Part 1 of 2 Construct a 99.5% confidence interval for the difference in mean emissions between trucks running at 40 F and trucks running at 80 F. Let d represent the emissions at 40 F minus the emissions at 80 F. Use tables to find the critical value and round the answers to at least two decimal places. A 99.5% confident that the difference in mean emissions between trucks running at 40 F and trucks running at 80 F is : = pr X B