Final answer:
The claim that only large organizations need a human resource manager is false; all businesses, regardless of size, can benefit from human resource management to handle staffing challenges and reduce hiring biases.
Step-by-step explanation:
The statement that only large organizations (greater than 50 people) need a human resource manager is false. While it might be common to associate the need for formal human resource management with big companies, small businesses also benefit from human resource strategies. Notably, professionalizing human resources can help mitigate biases in the hiring process. Research suggests that larger organizations could have more resources devoted to recruitment and may have cultivated experience with diverse staff, which could potentially lower tendency towards discrimination. However, businesses of all sizes, even those with fewer than 20 employees like dentists, lawyers, or local service providers, can also face complex staffing challenges that a human resource manager could help navigate.