If Temperature is a factor at a high level of 65 degree Celsius and a low level of 55 degree Celsius, what should be the coded value of the centre point assuming design is represented in a geometric scale?
OPTIONS
- -1
- 1
- 60.
- 0
ANSWER
0
EXPLANATION
The coded value assuming a two level design is -1 and 1 and center point is 0, so 0 is correct.
