A study compares the average number of accidents by gender for three different age groups.The profile plot of the group means is shown below. Based on this plot,does there seem to be an interaction effect between gender and age group?
A)Yes
B)No
C)This cannot be determined from the information given.

Question

A study compares the average number of accidents by gender for three different age groups.The profile plot of the group means is shown below.  Based on this plot,does there seem to be an interaction effect between gender and age group?
A)Yes 
B)No 
C)This cannot be determined from the information given.

Quizplus · Accepted Answer

The profile plot shows that the lines for males and females have different steepness and shapes across the three age groups. This indicates that there is an interaction effect between gender and age group on the average number of accidents.

A Study Compares the Average Number of Accidents by Gender