The following are the data obtained with a 2 factorial design with four replications at the center:

(1) = 1 123 d = 3 348 e = 4 093 de = 4 190 a = 1 786 ad = 3 055 ae = 4 517 ade = 4 413 b = 1 786 bd = 2 509 be = 4 755 bde = 4 264 ab = 2 359 abd = 2917 abe = 4 316 abde = 4 100 c = 982 cd = 4 328 ce = 7 066 cde = 6 935 (0, 0, 0, 0, 0) = 5 134 ac = 1 458 acd = 3 969 ace = 5 871 acde = 6 467 (0, 0, 0, 0, 0) = 5 157 bc = 1 451 bcd = 2932 bce = 5 477 bcde = 5 306 (0, 0, 0, 0, 0) = 4653 abc = 2 180 abcd = 4 167 abce = 5 774 abcde = 5 960 (0, 0, 0, 0, 0) = 4834