Final answer:
The argument for online-based research is that it is cost-effective, yields faster results, and reaches a wider audience.
Step-by-step explanation:
The argument for online-based research that the new director of market research might use is that a well-designed, Internet-based marketing research project can cost less and yield information faster than offline research. Online research allows for faster data collection and analysis, as well as the potential for cost savings compared to in-person methods. Additionally, online research can reach a wider and more diverse audience, including younger demographics who are typically more technologically savvy.