solve please

Q.3. It is known that a sample of 12, 11.2, 13.5, 12.3, 13.8 and 11.9 comes from a population with the density function f ( x; 0) = x0+1ix>1, otherwise Where 0 > 0. Find the maximum likelihood estimator of 0 and hence calculate its estimate for the given data. [6]