I need help in Linear Discriminant Analysis in Matlab. I have two classes need to classify between them. we will work on basic example not the real data.
Question 1: Assignment LP Model
The following matrix shows the costs in thousands of dollars for assigning Individuals P, Q, R, S and
T to Jobs 1, 2, 3, 4 and 5.
a) Using the Hungarian (manual) method, determine the optimal assignment of individuals to Jobs in order to minimize the time for completion of Jobs. Indicate the overall costs.
b) Write an LP formulation that could be used to solve this problem with the relevant LP software packages like Microsoft Excel "solver".
Question 2: Materials Requirements Planning (MRP)
An MRP exercise is being implemented over an 8-week period and the following relevant information is provided:
One unit of A is made of two units of B, two unit of C, and two units of D. B is composed of three units of E and one unit of D. C is made of one unit of B and two units of E. E is made of one unit of F. Items B, C, E and F have one week lead times; A and D have lead times of two weeks. Assume that lot-for-lot (L4L) lot sizing is used for Items A, B and F; lots of size 50, 50 and 150 are used for Items C, D and E respectively. Items C, E and F have on-hand (beginning) inventories of 10, 50 and 200, respectively; all other items have zero beginning inventory. We are scheduled to receive 10 units of A in Week 2, 50 units of E in Week 1, and also 50 units of F in Week 1. There are no other scheduled receipts.
a) Draw the product structure with low-level coding
b) Draw the corresponding time-phased diagram showing lead times to scale.
c) If 40 units of A are required in Week 8, determine the necessary planned order releases for all components {6 schedules}see schedules table below
Question 3: Inventory Management
a) Describe ABC inventory analysis. What are some policies that may be based upon the results of an ABC analysis?
b) Differentiate between perpetual inventory monitoring and periodic inventory monitoring.
c) It is your responsibility as the new supervisor of the Sport's section of Ajaun Department Store to ensure that reorder quantities for the various items have been correctly established. You decide to test one item and choose the Size 5 Nike football. A perpetual inventory system has been used, so you examine this as well as other records and come up with the following data: Cost per football $55 each
Holding cost 18% of football cost per year
Demand 3,920 per year
Ordering cost $336.16 per order
Standard deviation of daily demand 4 footballs
Delivery lead time 5 days
Because customers generally do not wait for footballs but go elsewhere, you decide on a service
probability of 98 percent. Current on-hand inventory is 96 footballs, with no open orders or
backorders. Assume the demand occurs 280 days per year.
i. What is the Economic Order Quantity (EOQ)?
ii. What is the number of order placed per year?
iii. What would be the average time between orders?
iv. What is the Reorder Point (ROP)?
v. An inventory withdrawal of 10 units was just made. - Is it time to reorder?
vi. If the store currently uses a lot size of 600 units, determine the annual holding cost and the annual ordering cost of this policy.
vii. What would be the annual cost saved, if any, by shifting from the 600-unit lot size to the EOQ?
Note:
1. For the MRP question Use the table on page 164 of the course material for the formula on Net Requirement, Net receipts, and Planned Order Release are shown on Page 164.
2. Z-values are assumed to be:
a. 3.0 for 98% services level
b. 2.0 for 95% services level
c. 1.0 for 68% services level