3.4.2 Hypotheses Testing and Discus

3.4.2 Hypotheses Testing and Discussion
In order to test the study hypotheses the averages, standard deviations and impact ratio for each variable of the study were calculated in order to identify the role of computerized accounting information systems in reducing the costs of medical services provided at King Abdullah University Hospital, as shown in Table 2. For the purpose of testing sub-hypothesis no. 1, which provides that " There is no role for computerized accounting information systems in reducing the costs of medical services at King Abdullah University Hospital", Table 2 shows that the average was 4.3, the standard deviation 0.18, and the impact ratio 86%. This shows that there is a role for computerized accounting information systems in reducing the costs of medical services at King Abdullah University Hospital. Therefore the null hypothesis is rejected and the alternative hypothesis is accepted. This means that qualified human resources can play a major and effective role in reducing the costs of services. The more skills and training the human resources have, the better they serve.