SOLVED: 6.5-2a,c,d: In some situations where the regression model is useful, it is known that the mean of Y when X = 0 is equal to 0, that is, Yi = βxi εi where ε for i = 1,2, are independent and N(0,σ^2).a) Obtain the maximum likelihood estimators, β̂ and σ̂^2, of β and σ^2 under this model.b) not assignedSuppose a sample of size n = 2 consists of the observations (ε1,Y1) = (1,1), (ε2,Y2) = (2,1). Calculate the estimates of β̂ and σ̂^2 from part a) for these data, and plot the