Q: is my problem statement correct "how can we improve the efficiency of collection and delivery"

Welcome to the Editage Insights Q&A Forum! Thank you for your question. Without any information about your study, we may not be able to tell you whether your problem statement is suitable or not. 

However, we have covered this topic several times on this forum, site, and a related platform, R Upskill. We have linked a few of these below. For more help, you may look up the forum, site, and platform using the relevant keywords. 

How to write a problem statement for my research? 

The basics of writing a statement of the problem for your research proposal 

How to write a statement of the problem 

Hope that helps. All the best for your study!