1. Decide whether you reject or fail to reject the null and interpret for the following statistical tests (4 points) a. Ho: Ww = 80; Ha: Ww # 80; a =.05; Zev =$1.96; Zobtained = +2.33 b. Ho: Ww = 80; Ha: Ww # 80; a = .05; try = +2.042; tobtained = +2.23 C. Ho: Hw = 80; Ha: Hw & 80; a=.05; try =-1.697; tobtained = -1.58 d. Ho: H1= H2; Ha: H1 6 H2; a=.05; try = -1.64; tobtained = -1.58