an analyst wishes to include number of older siblings in family as a predictor variable in a regression analysis of factors affecting maturation in...

an analyst wishes to include number of older siblings in family as a predictor variable in a regression analysis of factors affecting maturation in eighth graders. The number of older siblings in the sample observations ranges from 0 to 4. discuss whether this variable should be placed in the model as an rdinary quantitative variable or by means of four 0, 1 indicator variables.