In a line graph of results of a 2x2 factorial experiment, an interaction is shown by:
A. Some points higher than others
B. One line higher than another
C. Two lines not parallel to the x-axis
D. Two lines not parallel to each other
Answer:D
In a line graph of results of a 2x2 factorial experiment, an interaction is shown by:
A. Some points higher than others B. One line higher than another C. Two lines not parallel to the x-axis D. Two lines not parallel to each other