Changing API level Android Studio

Question

I want to change the minimum SDK version in Android Studio from API 12 to API 14. I have tried changing it in the manifest file, i.e.,

Answer 1

For the latest Android Studio v2.3.3 (October 11th, 2017) :
1. Click View on menu bar
2. Click Open Module Settings
3. Open Flavors tab
4. Choose Min Sdk version you need
6. Click OK