Recommended Training Program Based on Productivity

A leading research institute conducted a study on the effectiveness of different training programs in improving employee productivity. They measured the productivity of employees before and after attending one of the following training programs: intensive workshop, online course, or mentorship program. The results indicated that:

• Employees who attended the intensive workshop increased their productivity scores by an average of 20%.
• Employees taking the online course showed a productivity increase of 10% on average.
• Those involved in the mentorship program had varied outcomes, with some increasing productivity by 15%, while others reported a decrease of up to 5%.

If the institute were to recommend only one training program based solely on the average productivity increase, which program would they likely choose?