What does Feldstein use to persuade the committee about the walking trail?

Feldstein effectively uses statistical data on health benefits to persuade the committee about the walking trail. By presenting concrete numbers and studies that demonstrate how walking trails can lead to improved physical health, mental well-being, and community engagement, he builds a logical argument that appeals to the committee's desire for tangible outcomes. Statistical data serves to provide evidence that supports the positive impacts of a walking trail, making the case not just based on opinions or personal stories, but on research-backed facts. This approach can significantly increase the credibility of his proposal, as the committee members are likely to be swayed by data that illustrates the potential benefits to the community.