Excerpt from A Sequential Approach of Estimating Two-Factor Interactions When n is not a module of 4, we use a larger available resolution IV design. For example, if n z 11, we use a resolution IV design with 24 runs without the last column in design matrix. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.