Final answer:
Approximately 54% of American managers are independent souls who follow their own values and focus on the needs of employees, leading by empowering.
Step-by-step explanation:
Based on the information provided, we can calculate the percentage of American managers who follow their own values and focus on the needs of employees.
Out of the 1,050 randomly selected adults, 360 identified themselves as manual laborers, 280 as non-manual wage earners, 250 as mid-level managers, and 160 as executives.
In the survey, 54 percent of mid-level managers preferred trucks. Therefore, the percentage of American managers who follow their own values and focus on the needs of employees, leading by empowering, would be approximately 54%.