Show that, in the problem of testing hypothesis H0 : = Ip, discussed in Section 16.3,

Show that, in the problem of testing hypothesis H0 : Σ = Ip, discussed in Section 16.3, the likelihood ratio can be expressed as (16.35), where A =



n i=1(Xi − ¯X)(Xi − ¯ X)

 with ¯X = n

−1



n i=1 Xi , and | · | denotes the determinant.