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INVESTIGATION OF THE TESTS IN THE MODELING PROCESS IN UNIVARIATE TIME SERIES

In this article, the tests used to test the suitability of univariate time series models are examined. For this purpose, considering the Box-Pierce Q(m), Ljung-Box Q(m), McLeod-Li Q(m), Monti's Q(m) and Li-McLeod Q(m) tests, the selected model structure and appropriate sample and the performance of the tests to ensure the suitability. In order to compare the tests with each other, Monte Carlo simulation method was used to obtain the first (I.) type error results of the tests and then the experimental power results and thus the comparison was made. According to this simulation study, the first experimental error and experimental power values were taken into consideration and the results of the tests were given.