Wyatt Seed Company sells three grades of Early White Sugar corn seed, distinguished according to the consistency of germination of the seeds. The state seed testing laboratory has a sample of each grade of seed and its test results on the number of seeds that germinated out of packages of 100 are as follows: Does Wyatt's grading of its seeds make sense? Grade I (Regular) 88 91 92 89 79 Grade II (Extra) 87 92 88 90 92 Grade III (Super) 90 89 79 93 88