List the name of persons who were not included in the credit for the 'How the Test Was Won' episode.
"How the Test Was Won" is the title of episode; not included in the credit refers to credited = ' '; name of person refers to person
SELECT T2.person FROM Episode AS T1 INNER JOIN Credit AS T2 ON T1.episode_id = T2.episode_id WHERE T1.title = 'How the Test Was Won' AND T2.credited = 'false';