Does the foundation laid by 'Model yields an estimate of the percentage change in a household's demand for postage as a result of owning a computer' logically support 'There is a change in the use of postage depending on whether a household owns a computer.'
Model yields an estimate of the percentage change in a household's demand for postage as a result of owning a computer###There is a change in the use of postage depending on whether a household owns a computer.