Q. 1 Write introduction of 2k factorial designs with respect to its application in manufacturing industry. Let us consider the effect estimates from a 2 factorial design as follows: ABCD= -1.5138,...

Extracted text: Q. 1 Write introduction of 2k factorial designs with respect to its application in manufacturing industry. Let us consider the effect estimates from a 2 factorial design as follows: ABCD= -1.5138, ABC= -1.2661, ABD= -0.9852, ACD= - 0.7566, BCD= -0.4842, CD= -0.0795, BD= -0.0793, AD=0.5988, BC=0.9216, AC=1.1616, AB=1.3266, D=4.6744, C=5.1458, B=8.2469, and A=12.7151. Are you comfortable with the conclusions that all main effects are active?