A soil sample has a compression index of 0.3. If the void ratio e at a stress of 2940 \mathrm{lb} / \mathrm{ft}^{2} is 0.5,compute (i) the void ratio if the stress is increased to4200 \mathrm{lb} / \mathrm{ft}^{2}, and (ii) the settlement of a soil stratum 13 ft thick.