Example of the spectrum (in rest frame) obtained by stacking fibers from the full sample between 2.5 and 3.0 b_e (black solid). The 1 and 3σ errors on the continuum are shown in the orange and yellow bands. The best-fit model spectrum (blue dotted) is overplotted along with the residuals from the fit (green). The bright emission lines Hα, Hβ, [O ii], [O iii], [N ii], and [S ii], discussed in this paper, are labeled.