Final answer:
Martin used the representativeness heuristic to hire Ann for the associate's position because she reminded him of a former successful employee, which could lead to inaccurate judgments about her potential performance.
Step-by-step explanation:
Martin decided to hire Ann for the associate's position because she reminded him of a former associate who had excelled in the position. This type of heuristic used by Martin is commonly known as the representativeness heuristic. It involves judging the likelihood of an event by comparing it to an existing prototype in our minds. Martin is essentially equating Ann's potential job performance with that of his successful previous associate.
This can lead to stereotyping and may not always be an accurate predictor of actual job performance. It's important to note that by focusing on representativeness, Martin could be overlooking other relevant qualities or qualifications that Ann possesses.