McMiller scored double-digit points in her final 13 games with the Scarlet Knights.
Penn State held a lead for most of the fourth set and almost forced a fifth until Princeton scored nine of the final 11 points of the match.
The Nittany Lions ended their three-game losing streak by dominating the Boilermakers.
Penn State finishes the season with a 9-3 record.
Teams can train at Jeffrey Field and stay at the Penn Stater Hotel.
Nzeh will be searching for his third program with two years of eligibility remaining.