are sample heterogeneity and sample dummy variables the same why is sample homogeneity an assumption is sample heterogeneity an assumption of regression? what is the assumption that a sample is heterogeneous do regression tests take into account heterogeneity is sample heterogeneity an assumption what assumption is an ancva what is the assumption of a statistical analysis does ignoring the heterogeneity of sample invalidate a regression analysis? is sample homogeneity an assumption of regression analysis? is sample homogeneity an assumption in regression analysis? when do regression analyses use the assumption that the sample is homogeneous? what makes an assumption of sampling homogeneity? is sample homogeneity an assumption of regression analysis is sample homogeneity an assumption in regression analysis? when should we ignore sampling in regression analysis which statement about the sample is correct? does sample homogeneity mean the same thing as an ANCOVA does homogeneity invalidate regression what is sample heterogeneity