Dunn · 2026

Process Improvement using Data

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Answers the book prints that Factorial cannot compute yet, by what it lacks.

The library's curvature test needs pure error from two or more centre runs, and this design has one; the book's difference is run 6 less the mean of the four corners, 688 - 670.25 = 17.75, which agrees with 'about $18'
The number of regular eight-run four-factor fractions, a count from the book's own enumeration of every choice of generators (regular_fractions); no check kind or library function counts designs
The number of regular sixteen-run seven-factor fractions, a count from the book's own enumeration of every choice of generators (regular_fractions); no check kind or library function counts designs
The number of sixteen-run seven-factor fractions of resolution IV, a count from the book's own enumeration of every choice of generators (regular_fractions); no check kind or library function counts designs
The best resolution over every 32-run seven-factor regular fraction, from the book's own enumeration; generate_design makes a seven-factor fraction of 16 runs when resolution IV is asked and of 64 runs when resolution V is asked, never 32, so design_property cannot reach this design without generators the book does not give. The book's CI checks this echoed value

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The number of 32-run seven-factor fractions of resolution IV (the sum 40 + 25 + 30 of the printed counts), a count from the book's own enumeration of every choice of generators (regular_fractions); no check kind or library function counts designs
A comparison of the fifteen-run Box-Behnken design with the best value over every fifteen-run three-factor OMARS design on the nine measures, from the book's figure script, which scores every three-factor OMARS design of each size; no check kind or library function enumerates the OMARS catalogue
A comparison of the nine-run DSD with every nine-run three-factor OMARS design on six measures, from the book's figure script, which scores every three-factor OMARS design of each size; no check kind or library function enumerates the OMARS catalogue
The best max |r| over every seventeen-run three-factor OMARS design, from the book's figure script, which scores every three-factor OMARS design of each size; no check kind or library function enumerates the OMARS catalogue; compare_designs and omars_properties give 0.05556 for one design that attains it, the twelve points with five centre runs (verified)
The best max |r| over every nineteen-run three-factor OMARS design, from the book's figure script, which scores every three-factor OMARS design of each size; no check kind or library function enumerates the OMARS catalogue; the design attaining it is not printed
The number of three-factor OMARS designs of 21 runs with one centre run, a count from the book's figure script, which scores every three-factor OMARS design of each size; no check kind or library function enumerates the OMARS catalogue
A statement that the six measures of the first two rows pick four different 21-run designs, from the book's figure script, which scores every three-factor OMARS design of each size; no check kind or library function enumerates the OMARS catalogue
The best attainable variance factor of a quadratic over every 19-run three-factor OMARS design with one centre run, from the book's figure script, which scores every three-factor OMARS design of each size; no check kind or library function enumerates the OMARS catalogue; the design attaining it is not printed
The power at the best attainable quadratic variance factor over every 19-run three-factor OMARS design (non-central F, |beta|/sigma = 1, alpha = 0.05), from the book's figure script, which scores every three-factor OMARS design of each size; no check kind or library function enumerates the OMARS catalogue; the design attaining it is not printed