  A model independent analysis of the most recent averages of precision
electroweak data from LEP and SLD finds a 3$\sigma$ deviation of the parameter
$A_b$ from the Standard Model prediction.
  The fitted value of $m_H$ shows a strong dependence on the inclusion or
exclusion of b quark data, and the Standard Model fits have poor confidence
levels of a few percent when the latter are included.
  The good fits obtained to lepton data, c quark data and the directly measured
top quark mass, give $m_t = 171.2_{-3.8}^{+3.7}$ GeV and indicate that the
Higgs boson mass is most likely less than 200 GeV.
