1. Using city and sex as independent categorical variables, conduct an analysis of IQ.

Sex male female female female female male female male male female male female male female - male City Corpus Callosum Surface Area (cm\"2} 1 1 1 2 2 2 3 3 3 4 4 4 5 5 5 7.67 6.49 5.32 3.77 3.17 3.79 7.44 6.03 7.99 6.23 7.61 7.62 7.99 3.42 7.52 IQ 124.00 1 17.00 1 13.00 102.32 1 10.00 104.00 33.00 95.00 36.00 1 1 1.09 1 10.00 99.00 104.00 103.00 95.00 Head Circumference {cm} Total Brain Volume (cm3) 53.50 52.74 55.00 57.24 57.31 67.12 57.00 55.00 53.60 57.13 59.03 57.20 57.20 56.90 59.20 1160.00 1067.31 991.23 1092.93 1231.16 1261.32 1051.00 1029.00 1231.00 1123.31 1162.47 1239.00 1173.00 1272.00 1204.00