In general, a typical Data Scientist will be 15-20 hrs a week working on modeling, analysis, report generation, and some other processes. Effective Data Science is still very task-oriented. So, depending on available the infrastructure it takes 18 hours a week to meet your weekly targets or 40+. Want to master Data Science concepts? Sign up for this Data Science course!
Also, watch this video on Data Science Career by Intellipaat: