Question: Steel ingot experiment. A quality control supervisor measures the quality of a steel ingot on a scale from 0 to 10. He designs an experiment in which three different temperatures (ranging from 1,100 to 1,200^? F) and five different pressures (ranging from 500 to 600 psi) are utilized, with 20 ingots produced at each Temperature-Pressure combination. Identify the following elements of the experiment:

a.) Response

b.) Factor(s) and factor type(s)

c.) Treatments

d.) Experimental units