3.5 Refer to Exercise 3.4, the demand for TDTech in the next 6 months is shown as follows:

Month 1

2 3

4 5

6 Demand 700 600 800 1000 900 800 T

he inventory holding cost for a unit of scanner is $10 per month. No backlogs are allowed. No employees will be hired or laid off during the planning horizon. Should TDTech consider purchasing tripods from the supplier? If yes, when should TDTech purchase tripods and in what quantity?