Consider following sample:

29, 20, 46, 37, 30, 26, 39, 39, 48, 25, 29, 36, 37, 25, 23


The data points are independently sampled from a uniform distribution with the density function f(x)=1/(a−5), where 5≤x≤a. 
Use the method of moments to estimate a . Use two digits after the decimal point.