From the following seven questions, select and answer any six. Write OMIT over the question you do
Fantastic news! We've Found the answer you've been seeking!
Question:
1. Develop a linear trend equation for the data on bread deliveries shown below.
a. Forecast deliveries for period 11 through 14.
b. Calculate and explain the Coefficient of Correlation. Explain this for someone who hasn't had the privilege of taking Operations Management.
c. Calculate and explain the Coefficient of Determination. Explain this for someone who hasn't had the privilege of taking Operations Management.
Period | Deliveries | Period | Deliveries | |
(Dozens) | (Dozens) | |||
1 | 648 | 6 | 856 | |
2 | 590 | 7 | 760 | |
3 | 631 | 8 | 962 | |
4 | 769 | 9 | 990 | |
5 | 745 | 10 | 1100 |
a. Determine the optimum cycle time.
b. What is the theoretical minimum number of stations needed?
c. Draw the precedence diagram.
d. Using the minimum cycle time, assign tasks to stations in order of most following tasks first.
e. What is the idle rate?
Please see next page for data.
Task | Time (Min) | Pre-decessor | |
a | 0.2 | -- | |
b | 0.4 | a, c | |
c | 0.3 | -- | |
d | 0.2 | -- | |
e | 0.4 | b, d | |
f | 0.2 | e | |
g | 0.3 | -- | |
h | 0.2 | e, g | |
i | 0.3 | h |
Period | Vehicles Sold | Period | Vehicles Sold | |
1 | 55 | 6 | 54 | |
2 | 35 | 7 | 60 | |
3 | 25 | 8 | 53 | |
4 | 55 | 9 | 68 | |
5 | 48 | 10 | 66 |
b. Using Mean Absolute Deviation, which of the forecast methods is best for the given data?
c. Explain why?
4. Use the center of gravity method to select the best location for a distribution center. Show the locations of the destinations and the Distribution Center on a graph.
Coordinates | ||||
Destination | Quantity | x | y | |
D1 | 200 | 4 | 1 | |
D2 | 275 | 3 | 2 | |
D3 | 375 | 1 | 2 | |
D4 | 280 | 1 | 4 | |
D5 | 350 | 3 | 4 | |
D6 | 265 | 4 | 3 | |
D7 | 340 | 2 | 1 | |
D8 | 370 | 3 | 3 |
If condition I materializes, A will cost $12,000, B will cost $20,000, and C will cost $16,000. If condition II materializes, the costs will be $15,000 for A, $18,000 for B, and $14,000 for C. If condition III materializes, the costs will be $10,000 for A, $15,000 for B, and $19,000 for C.
a. Draw a decision tree for this problem.
b. Using expected monetary value, which alternative should be chosen?
6. An analyst has observed 25 work cycles, for which the average cycle time was five minutes and the performance rating was 1.05. Allowances for the department are 25 percent of job time. What standard time is appropriate for this job?
Related Book For
Statistical Techniques in Business and Economics
ISBN: 978-1259666360
17th edition
Authors: Douglas A. Lind, William G Marchal
Posted Date: