  We study the statistics of level widths of a quantum dot with extended
contacts in the absence of time-reversal symmetry. The widths are determined by
the amplitude of the wavefunction averaged over the contact area. The
distribution function of level widths for a two-point contact is evaluated
exactly. The distribution resembles closely the result obtained when the
wavefunction fluctuates independently at each point, but differs from the
one-point case. Analytical calculations and numerical simulations show that the
distribution for many-point contacts has a power-law behavior at small level
widths. The exponent is given by the number of points in the lead and diverges
in the continuous limit. The distribution of level widths is used to determine
the distribution of conductance peaks in the resonance regime. At intermediate
temperatures, we find that the distribution tends to normal and fluctuations in
the height of the peaks are suppressed as the lead size is increased.
