●●● ●●●● Hypothesis testing ●●●●● ●●●● Aim: Is the average English score of students from 2 0000 ●●●● schools different or same? Methods 2 Do a sampling study and then do hypothesis testing =100 X1=82,S1=9.5 =150 X2=81 8.3 XINI 2021/1/292021/1/29 4 Hypothesis testing Aim: Is the average English score of students from 2 schools different or same? Methods 2 Do a sampling study and then do hypothesis testing 82, 9.5 100, 1 1 1 = = = X S n 81, 8.3 150, 2 2 2 = = = X S n 1 2 = 