Final answer:
The perception bias in this scenario is the halo effect. Jack's boss favors him due to the positive first impression he made at the interview, regardless of his actual performance.
Step-by-step explanation:
The perception bias in this scenario is the halo effect. The halo effect is the tendency to let the overall impression of an individual color the way we feel about their character. In this case, Jack made a great first impression at the interview, which has influenced his boss to always favor him, regardless of his actual performance or capabilities.