**Responses to Reviewers’ Comments**

1\. Why ARIMA (11, 1, 0) and ARIMA (1, 1, 1) are chosen for this study have now been added as suggested by the reviewers. The justification for choosing them can be found in the first paragraph under “Findings and Discussion”

2\. The formulae of normalised Bayesian Information Criterion (BIC), Root Mean Square Error (RMSE), Mean Absolute Error (MAE) and Mean Absolute Percentage Error (MAPE) have now been introduced as suggested by the reviewers and can be found under “ Model specification”

3\. As also suggested by the reviewers, more explanations have been given about Ljung – Box Q(18) statistics. These can be found under “Model specification” and under “Findings and Discussion”

4\. More previous researches which applied ARIMA models in literature have been reviewed as also suggested. This can be found in the third paragraph under “Introduction”

5\. Areas related to minor flow and capitalization mistakes have also been adjusted.

**Remarks:**

The authors wish to thank the reviewers for their constructive input. We also appreciate the Chief Editor for making quality knowledge available across the globe.