Example 6.22 suggests the use of OA(54, 5, 3, 3) to cover all 3-way interactions. Look up this array on the Internet and design all 54 tests for the pacemaker. Refer to the “CRC Handbook of...

Example 6.22 suggests the use of OA(54, 5, 3, 3) to cover all 3-way interactions. Look up this array on the Internet and design all 54 tests for the pacemaker. Refer to the “CRC Handbook of Combinatorial Design” cited in the Bibliographic Notes section. How many tests are required if the coverage requirement is relaxed to pairwise coverage?