A market researcher is studying the spending habits of people across age groups. The amount of money spent by each individual is classified by spending category (Dining out, Shopping, or Electronics) and generation (Gen-X, Gen-Y, Gen-Z, or Baby Boomers). The data and an incomplete ANOVA table are shown below. Monthly Spending ($) (Factor A) Dining out Shopping Electronics Generation (Factor B) Baby Boomers 50 675 25 75 500 50 0 750 80 Gen-X 150 400 100 200 440 75 225 380 95 Gen-Y 100 200 300 300 225 400 400 245 450 Gen-Z 500 100 200 550 180 300 600 190 260 Source of Variation SS df MS F Rows(Factor B) 46,869 3 15,623 Columns(Factor A) 159,860 2 79,930 Interaction Error 4,865 Total 1,321,831 35 The degrees of freedom for the interaction and the error are ________.