2) Y's statistical regression on X is assumed as (Y = BO + B1x + ε). Using the sample data given below, answer the questions:
23456189 10 4.7 45 45 42 4 3.9 35 33 34
a) Test the validity of the current model by drawing the scatter diagram and calculate (R0) and b(81) with the matrix method.
b) Calculate and comment on r.
c) Create confidence intervals of 95% for β0 and β1.
d) While x being -3.5, create an estimation range of 95% for Y.