The effect of three different lubricating oils on fuel economy in diesel truck engines is being… 1 answer below »
The effect of three different lubricating oils on fuel economy in diesel truck engines is being studied. Fuel economy is measured using brake-specific fuel consumption after the engine has been running for 15 minutes. Five different truck engines are available for the study, and the experimenters conduct the following randomized complete block design. Truck Oil 1 2 3 4 5 1 0.500 0.634 0.487 0.329 0.512 2 0.535 0.675 0.520 0.435 0.540 3 0.513 0.595 0.488 0.400 0.510 (a) Analyze the data from the experiment (b) Make comparisons among the three lubricating oils to determine specifically which oils differ in brake-specific fuel consumption (c) Analyze the residual from this experiment. Note: Use the appropriate nonparametric methods in the Analysis of Variance to answer the questions, such as Kruskal-Wallis test, Friedman’s method…ect.