Question: An experiment was conducted to determine whether either firing temperature or furnace position affects the baked density of a carbon anode. The data are as
An experiment was conducted to determine whether either firing temperature or furnace position affects the baked density of a carbon anode. The data are as follows:

(a) State the hypotheses of interest.
(b) Test the hypotheses in part (a) using the analysis of variance with α = 0.05. What are your conclusions?
(c) Analyze the residuals from this experiment.
(d) Using Fishers LSD method, investigate the differences between the mean baked anode density at the three different levels of temperature. Use α = 0.05.
Temperature (C) 800 Position 825 850 570 1063 1 565 565 510 1080 583 1043 590 528 988 526 547 1026 538 521 1004 532 2.
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