... As these data span a large range in redshift, they are ideal for testing the validity of Type Ia supernova progenitor models with the distribution of expected \delay times," from progenitor star formation to SN Ia explosion, and the SN rates these models predict. Through a Bayesian maximum likelihood test, we determine which delay- time models best reproduce the redshift distribution of SNe Ia discovered in this survey. ... 1998) SD model. ... We tested two Gaussian delay time distribution models. ...