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 Fisher€™s LSD method, investigate the differences between the mean baked anode density at the three different levels of temperature. Use α = 0.05.

Transcribed Image Text:

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.