statiscal method

X As part of the Statistical Methods course, the mid-term teacher subjects 10 students to a test in. order to verify the level of knowledge acquired by each during this first period of training. To do this, he seeks to determine whether the average at the end of the first training period (Y) can be predicted by the result obtained on the mid-term exam (X). At the end of the session, he obtains the following data: Xi 11 9.6 9.4 7.8 9 12 14.4 8.6 9.4 12.4 6.2 4.6 6 3.8 5 6.8 5.2 3.2 3.2 7.4 E Xi = 103.6 ; E Yi = 51.4 ; E Xi carres = 1110.8_; E Yi carres = 283.56 E Xi Yi = 549.24 1. Calculate the equation of the regression line 2. Calculate the correlation coefficient r and interpret it 3. Perform the correlation coefficient test at the 5% test level. 4. Interpret the equation of the line 5. Calculate the coefficient r squared and interpret it 6. What is the mean (Y) value for a student who scores 10.4 on the midterm exam