Final answer:
The stakeholders in this situation are Jayson Swanson, his employees, Sasha Quin, Josephine Smith, and the government. Jayson should comply with legal and ethical considerations regarding his payroll, and Sasha has an ethical responsibility to advise Jayson properly. The violation of the segregation of duties principle can be identified in this payroll process.
Step-by-step explanation:
a) The stakeholders in this situation are Jayson Swanson (the owner and manager of Jayson's Restaurant), Jayson's full-time employees, Jayson's part-time employees, Sasha Quin (Jayson's public accountant), Josephine Smith (Jayson's competitor and friend), and the government (which should receive taxes and worker's compensation insurance).
b) Legal considerations include the requirement to withhold and pay taxes and worker's compensation insurance, as well as the obligation to keep accurate records of wages. Ethical considerations include treating employees fairly, complying with tax laws, and not engaging in fraudulent practices.
c) Sasha Quin has an ethical responsibility to advise Jayson to pay the part-time employees by check and to report any illegal or unethical activities related to payroll.
d) The internal control principle violated in this payroll process is segregation of duties, as Jayson handles all aspects of the process without any checks or balances.