Question

Question 8 of 10 (5 points) | Attempt 1 of 1 | View question in a popup | Ø 2h 49m Remaining 11.3 Section Exercise 12 (critical value, table) ol. Truck pollution: In an experiment to determine the effect of ambient temperature on the emissions of oxides of nitrogen (NOR) of diesel truck, 10 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 1 918.2 904.9 2 821.0 826.4 3 958.4 935.3 4 919.2 821.0 5 895.4 863.7 6 880.2 844.1 7 900.4 814.9 8 755.1 715.3 9 792.9 827.0 10 916.5 858.3 Send data to Excel Let u, represent the mean emission at 40 °F and u d = 41-42: Can you conclude that the mean emissions are higher at 40 °F? Use the a= 0.01 level of significance. Next Part Submit Assignment

Answer 1

Capen theft temperature of tempezando Duck 1? 176 84 2 29 il 3 Y 5 8607 844.1 6 ny 918.2. Joy 8210 8264 -5.4 958.Y 935:3 23. / 919.2 821:0 38.2 895.4 31.7 88012 36:1 goo. 814.9 75501 715.3 398 822.0 -34./ 916.5 8573 58.2 Total = 346.90 di 34.64 nim 7 8 9 9642.27 losy 89 1303.2) 7310 25 SZY OY 1162-81 792.9 10 3587.24 26135.4 a = s & di S t (di-d) 2 . h & Edi? (Ech) ² 2 s² 15701672 is The hypothesis M = 42 against H: M 7H2 Cone failed test) where fi and p2 be the population Ynean of 40°F and 80°F respectively cs Scanned with CamScanner

Under lo Statistic don-1) S/.75 34.64 2.7640 64.617.10 2.76407 lit P-value Plt > 2.7640 ) 0.01018 O: 01/0 Cemile a 0.ollo Q=0.0.1 P-value is to greater than So our null hypothesis is quept 47 d0.01. There is no significance difference of truck temperature YouF and 80°F. sun at Ang CS Scanned with CamScanner