Which of the following jobs/decisions of production/operations management are related to short time horizon?
1. Product design
2. Product variations
3. Production scheduling
4. Design of jobs
5. Breakdown maintenance
6. Available materials allocation and handling
Select the correct answer:

The use of decision models.

A. Is possible when the variables value is known

B. Reduces the scope of judgement & intuition known with certainty in decision-making

C. Require the use of computer software

D. None of the above

Every mathematical model.

A. Must be deterministic

B. Requires computer aid for its solution

C. Represents data in numerical form

D. All of the above

A physical model is example of.

A. An iconic model

B. An analogue model

C. A verbal model

D. A mathematical model

The qualitative approach to decision analysis relies on.

A. Experience

B. Judgement

C. Intuition

D. All of the above