1 week, 1 day ago
Consider the data in table 1, showing the distance needed to stop (y, ft) when a car travels at a particular speed (x, mph) and brakes. It is thought that a good model for this dataset is a quadratic model
yij =a+bxi+cx2i +εij i=1,...,k; j=1,...,ni.
If we assume that εij ∼ N(0,σ2), independent, then the likelihood function is