Yes, assuming an ideal transformer, the measured impedance is related to the impedance at the output by the ratio of winding on the input vs. the output.
http://www.vias.org/matsch_capmag/matsch_caps_magnetics_chap6_04_04.html
http://www.vias.org/matsch_capmag/matsch_caps_magnetics_chap6_04_04.html