beta coefficients

Hello I would like to compare the regression lines and coefficients between the disease and healthy groups to see if the rate at which iron increases, and compare tight the data spread in correlation equation is between the groups to see robustness of the data collection method. I have...

I am running two regressions, each with the one independent variables (Y) but with two different dependent variables (X1, X2). examply: Y is central obesity, X1 is waist circumference, X2 is waist / hip ratio. I think the waist/hip ratio more good indicator than waist for central obesity...

y=β0+β1x1+β2x2+β3x3 Price = year + (difference between actual miles and average miles, x-xbar) + (year * difference between actual miles and average miles, year(x-xbar)) I am looking at this regression formula, but I don't understand what is going on. Could someone explain it a bit better to...

Dear all, First a short introduction to my study/review/meta-analysis. The purpose of my study is to systematically review longitudinal evidence on the association between psychosocial work characteristics (i.e. job demands, job control, social support) and sleep, since cross-sectional...