It's difficult to decipher the handwriting, but unfortunately the names of the parents of Anna Maria Heinz are indeed states as N.N and N.N. The test just after the N.N. reads: "und die Namen der beide Eltern der verstorbenen wißen die Deklarenten nicht an zu geben" - translated "the reporters do not know to state the names of the both parents of the deceased". angeben = state/report, wissen nicht = do not know.
Anna Maria was 63 years old at her death. ("Anna Maria Heinz, alt sechzig drei Jahre, ohne besonderes gewerb" - Anna Maria, aged 63 years, without a particular profession).
The document also states the birth location for Anna Maria Heinz, but I'm not sure I got all the letters right: Oberarmbach Kanton Landstuhl.