b) Astra company produces single product. The first unit of a new product requires (choose between 150 to 180 hours in multiple of 5 to manufacture. It is anticipated that 80% learning curve applies. 

Required: Use the data provided above about Astra company, identify 2 methods of the concept above and calculate cumulative average time and total time to produce 2 units and 8 units. ( show your answer up to 2 decimal places) (Learning Curve)