The following data on power consumption in electric furnace heats (kW consumed per ton of melted product) resulted from a 24 factorial experiment with three replicates ("Studies on a 10-cwt Arc Furnace," J. of the Iron and Steel Institute, 1956: 22). The factors were nature of roof (A, low/high), power setting (B, low/high), scrap used (C, tube/plate), and charge (D, 700 lby1000 lb).

Construct the ANOVA table, and test all hypotheses of interest using α = .01?

Transcribed Image Text:

Treat Treat ment ment 866, 862, 800 946, 800, 840 774, 834, 746 709, 789, 646 1017, 990, 954 1028, 906, 977 817, 783, 771 829, 806, 691 988, 808, 650 ad966, 976, 876 bd 702, 658, 650 abd 784, 700. 596 cd 922, 808, 868 acd 1056, 870, 908 bcd 798, 726. 700 abcd 752, 714,714 3 2 1