5.Conclusions and recommendations T

5.Conclusions and recommendations
The average for the accounting information system variable as a whole was 4.2, with a standard deviation of 0.68 and an impact ratio of 84%. This means that computerized accounting information systems play an in important role in reducing the costs of medical services at King Abdullah University Hospital compared with non-computerized systems, which usually require bigger costs and do not contribute to reducing the costs of medical services. Therefore the null hypothesis "there is no role for computerized accounting information systems in reducing the costs of medical services at King Abdullah University Hospital" is rejected and the alternative hypothesis is accepted.