as mentioned in the other comments, you can always ask for time to structure your approach at the beginning; however, the interviewer may urge you to provide a conclusion on the spot, thus be ready to do so if required.
As a structure for the conclusion, I would recommend the following:
1) Repeat the objective. This will ensure you are indeed answering to what is relevant for the case. Forgetting to repeat the objective is one of the most common mistakes candidates do in the conclusion and can lead to answer to the wrong question. As an example:
- “Our goal was to understand (i) why profits are declining and (ii) how we could increase profits by XYZ”
2) Provide an answer-first solution. You don’t have to present everything you discovered in the case at this stage, only the main conclusion and its supporting factor. If the conclusion is not clear 100% as you have not analyzed all the elements of your structure to derive a definite yes or no, you can provide a preliminary answer based on the elements you have identified.
- “After our initial analysis, we found out that profits are declining due a decrease in revenues in division 1 and that, in order to increase profits, with the information we have so far it seems a good idea to enter Market A. This is based on the following reasons:
- [SPECIFIC FINDINGS 1]
- [SPECIFIC FINDINGS 2]
- [SPECIFIC FINDINGS 3]”
3) Provide risks/ next steps suggestions. You should always have next steps/ risks in your conclusion. For this part, you can refer to the elements present in your structure you did not have time to cover, elements not completely covered during the case or to risks emerged during the analysis.
- “As additional elements, we would like also to consider the following …[RISKS/NEXT STEPS]”
Hope this helps,