Use Simpson's Rule with n = 4 and the given data to estimate the value of the integral / f(x) dx . (Enter an exact value or round your final answer to three decimal places.) X 1 1.5 2 2.5 3 3.5 4 4.5 5 f ( x ) 2.5 3.2 3.5 4.1 3.9 6.4 6.7 6.2 8.5