Can you please thouroughly show your work? I am struggling. Thank you.
Consider the unbalanced version of the cholesterol dataset provided below. i) Specify a statistical model for the cholesterol measurements in which the effects of age and gender are additive. ii) Report the four marginal means (mean for men, mean for women, mean for youngsters, mean for older folks). What function of factorial effects are estimated by each of these four marginal means. (Derive the expected value of each under the model.) iii) Using statistical software (SAS or R), estimate the four cell means for younger and older men and younger and older women. Report standard errors and 95% confidence intervals.
able[[jr,w,162],[jr,m,271],[jr,m,192],[jr,m,189],[jr,m,209],[jr,m,227],[jr,m,236],[sr,w,262],[sr,w,193],[sr,w,224],[sr,w,201],[sr,w,161],[sr,w,178],[sr,W,265],[sr,m,267],[sr,m,289]]
jr jr jr jr jr jr jr sr sr sr sr sr sr sr sr sr
W m m m m m m W W W W W W W m m
162 271 192 189 209 227 236 262 193 224 201 161 178 265 267 289