4. Assume that Y = (Y1, Y2, Y3, Y4) is a random sample (see page 5 of the handout) of the distribution U(0, 0), where 0 > 0 is the parameter. Assume that data have been obtained in response to this y = (11.56, 9.39, 13.37, 6.36) Suppose we know with certainty that 0 < 20. Let's use the uniform distribution p(0) between [0,20] as the prior distribution. i) Calculate the likelihood function 0 f(y|0) while justifying why f(y|0) O when 0 < 13.37. ii) Calculate the = density function 0 p(0|y) of the posterior distribution.