  We compute fermion pair production cross sections in $e^+e^-$ annihilation in
models of electroweak symmetry breaking in warped 5-dimensional space. Our
analysis is based on a framework with no elementary scalars, only gauge bosons
and fermions in the bulk. We apply a novel Green's function method to obtain an
analytic understanding of the new physics effects across the parameter space.
We present results for $e^+e^-\to b\bar b$ and $e^+e^-\to t\bar t$. The
predicted effects will be visible in precision measurements. Different models
of $b$ quark mass generation can be distinguished by these measurements already
at 250 GeV in the center of mass.
