tri-form, a medical technology company, determines that most problems handled by employees at its help desk can be resolved within 20 minutes. the company sets 20 minutes as the standard time for resolving a customer problem. if an employee solves a customer's problem in less than 20 minutes, the employee still earns 20 minutes' worth of wages. which payment method does this scenario illustrate? group of answer choices merit pay differential plan performance bonus piecework plan standard hour plan
