Title: Precision Electroweak Data and the Higgs Boson Mass

Abstract: The 3 sigma discrepancy between the two most precise asymmetry measurements, A_LR and A_FB^b, has been an enduring feature of the LEP/SLC data. Currently at 3.2 sigma, it is responsible for the marginal confidence level of the global fit, CL= 0.15, or CL= 0.02 if NuTeV is included, and for the appreciably lower CL's in the sector of measurements that determine the Higgs boson mass, CL= 0.06 and 0.006 respectively. Since both anomalies involve challenging systematic issues, it might appear that the SM fit would improve if both result from underestimated systematic error, and, indeed, the CL of the global fit could then increase to 0.78. But that fit predicts a small Higgs boson mass, m_H= 50 GeV, which, because of the increased precision and decreased central value of recent top quark mass measurements, is only consistent at CL= 0.026 with the 95% CL lower limit, mH > 114 GeV, established by direct searches. The data then favor new physics whether the anomalous measurements are excluded from the fit or not, and the Higgs boson mass cannot be predicted until the new physics is understood. Some measure of statistical fluctuation is needed to maintain the validity of the SM, which is unlikely by broad statistical measures. New physics is favored, but the SM fit is not definitively excluded. While it is important to search for a light Higgs boson, it is also important to be prepared to investigate other options for electroweak symmetry breaking at the LHC.