3. ('29 pt) X1, ..., X4 are independent Unif(0,9) random variables, where 9 E [0,10]. We would like to perform Bayesian inferences with prior distribution with prior density 7r(9) -_~ 0 X 9 X 1(0 S 6 g 10) for some constant c. Assume that observations are s :2 {2.8, 0.3,4.0, 3.6}