trix or as the expected outer product of the score function. The
null hypothesis is $$ H_0: \boldsymbol{H}(\theta) +
\boldsymbol{C}(\theta) = 0 $$ against the alternative $$ H_0:
\boldsymbol{H}(\theta) + \boldsymbol{C}(\theta) \neq 0 , $$ where
\(\boldsymbol{H}(\theta)\) is the expected Hessian matrix and
\(\boldsymbol{C}(\theta)\) is the expected outer product of the score
function. For the calculation of the test statistic we use the consistent
maximum likelihood estimator \(\hat{\theta}\) and the sample 