Quality Control Engineers Fire Tiles Made with This New Material

Multiple Choice

Quality control engineers fire tiles made with this new material at three different temperature settings (1500°F, 1800°F and 2200°F) and for four different times (2 hours, 6 hours, 10 hours and 12 hours) to determine the optimal parameter settings for firing that will result in tiles with high flexural strength.The response variable in this experiment is ________________________ .

A) the new material
B) flexural strength
C) firing temperature
D) tiles
E) firing time