Suppose you are interested in testing whether the mean income of women in the General Social Survey is representative of the earning of the entire U. S. male population. If there are 467 women in
the General Social Survey sample and approximately 128 million women in the population, calculate
the degrees of freedom for this single-sample t test.

Statements reasons 1. ab ? cd; ad ? bc 1. given 2. ac ? ac 2. reflexive property 3. ? adc ? ? cba 3. ? 4. ? dac ? ? bca; ? acd ? ? cab 4. cpctc 5. ? dac and ? bca are alt. int. ? s; ? acd and ? cab are alt. int. ? s 5. definition of alternate interior angles 6. ab ? cd; ad ? bc 6. converse of the alternate interior angles theorem 7. abcd is a parallelogram 7. definition of parallelogram what is the missing reason in step 3?