= 0.70960.10 / using z Tables (0. 10, we fail to reject null and conclude that PI= P- 2. To test the belief that sons are taller than their fathers, a student randomly selects 12 fathers who have adult male children. She records the height of both the father and the son in inches and obtaining the following data: 6 7 8 9 10 11 12 Height of father 70.3 67.1 70.9 66.8 72.8 60.4 71.8 70.1 69.9 70.8 70.2 70.4 = 69.292 height of son 74.2 69.3 66.8 69.2 68.9 70.2 70.4 69.3 75.6 72.4 69.1 68.5 - 70325 -3,9 - 2-2 4.1 -2.4 -9.9 1-4 -6:7 -1.6 1. 4= = 12.4 Are sons taller than their fathers using a=0.03 level of significance? D = = 1. 033 50= 4.085 0=0.03 = 1-0.03=0.97 Ho Md = o mean (D ) = Ed - 12 241 =1:033 His MOLD to = d-ma 1.033- 0 - solon = 0, 826 4, 0 05 V 12 P- value (-0.9576 )