Jan 1, 1970
Volume III, 86-99 Percent Slopes
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A three-volume compilation to assemble all the information a cost analyst is likely to need in using learning-curve data, including unit curve midpoints for plotting first-lot quantities. Accurate representation of the first-lot quantity is important, because misplacing this point could lead to incorrect conclusions about the cost-quantity relationship. In the past, unit curve midpoints were estimated by various approximation methods, because the calculations to obtain tables of true midpoints were complex and laborious. Now, through use of high-speed computers, such calculations can be made quickly and inexpensively. Consequently, in addition to the usual data listed in learning-curve tables, these volumes present first-lot midpoints of the unit curves for both log-linear unit curves and log-linear cumulative average curves. All slopes from 55 through 99 percent and all quantities from one through 2000 are covered. Calculations were performed in double precision arithmetic on the IBM 360/65 computer at RAND.