I want to find out if females (blue line) significantly are different from the men (red line). For "normaal gewicht" (normal weight) the confidence interval don't overlap, which indicates that they significantly are different (n=878). But for the other two groups (overweight (n= 138) and obesity (n= 29) the confidence intervals overlap. The intervals are bigger, because their n is smaller. My total n = 1045.
My real question is:
How can I do a test in SPSS where I can find out if there are significantly differences between males and females (Moderator) within their weight group (independent variabel) on their sociometric status (dependent variable)