1.From the choice of the simple moving average, weighted moving average, exponential smoothing, and regression analysis, which forecasting technique would you consider the most accurate? Why?

2.A company that operates for 50 weeks in a year is concerned about its stocks of copper cable. This costs RS 240 a meter and there is a demand for 8000 meters a week. Each replenishment costs Rs 1050 for administration and Rs 1650 for delivery, while holding costs are estimated at 25 % of the value held a year. Assuming no shortages are allowed,

1)What is the optimal lot size for the company?

2)Also calculate total inventory cost.

3)Assuming a safety stock of 2000 meters, find the inventory turnover.

3.Walmart designs its networks so a distribution center supports several large retail stores. Explain how the company can use such a network to reduce transportation costs while replenishing inventories frequently.

4.A company produces 2 products A and B. Each unit of product A requires three hours of engineering services and one hour of machine time. To produce one unit of product B, one hour of engineering and two hours of machine time are required. A total of 150 hours of engineering and 100 hours of machine time is available. The per unit profit of product A is Rs 12 and of product B is Rs 14. The company would like a production plan that gives the number of units of A and B to be produced that would maximize profits. Formulate and solve this as a linear programming problem to help the company maximize its total profit.