A manager must decide which type of machine to buy, A, B, or C.
Machine costs (per individual machine) are as follows:
| Machine | Cost | |
| A | $ | 80,000 |
| B | $ | 70,000 |
| C | $ | 40,000 |
Product forecasts and processing times on the machines are as
follows:
| PROCCESSING TIME PER UNIT (minutes) | |||||
| Product | Annual Demand |
A | B | C | |
| 1 | 24,000 | 1 | 4 | 6 | |
| 2 | 8,000 | 1 | 3 | 5 | |
| 3 | 30,000 | 6 | 4 | 3 | |
| 4 | 18,000 | 6 | 5 | 1 | |
a. Assume that only purchasing costs are being
considered. Compute the total processing time required for each
machine type to meet demand, how many of each machine type would be
needed, and the resulting total purchasing cost for each machine
type. The machines will operate 10 hours a day, 240 days a year.
(Enter total processing times as whole numbers. Round up
machine quantities to the next higher whole number. Compute total
purchasing costs using these rounded machine quantities. Enter the
resulting total purchasing cost as a whole number. Omit the "$"
sign.)
| Total processing time in minutes per machine: | |
| A | |
| B | |
| C | |
| Number of each machine needed and total purchasing cost | ||
| A | $ | |
| B | $ | |
| C | $ | |
b. Consider this additional information: The
machines differ in terms of hourly operating costs: The A machines
have an hourly operating cost of $12 each, B machines have an
hourly operating cost of $14 each, and C machines have an hourly
operating cost of $15 each. What would be the total cost associated
with each machine option, including both the initial purchasing
cost and the annual operating cost incurred to satisfy
demand?(Use rounded machine quantities from Part a. Do not
round any other intermediate calculations. Round your final answers
to the nearest whole number. Omit the "$" sign.)
| Total cost for each machine | |
| A | |
| B | |
| C | |
In: Operations Management
A city is hosting an annual marathon event and wants to produce t-shirts. Maria was able to obtain previous years’ demand and probability data as given in below table. She also estimates:
Selling price is $10, cost is $3, and the salvage value is $1.
Calculate all numbers in the payoff table. Show all work. How many shirts should be made to maximize profit?
|
Demand = 1000, 20% |
Demand = 2000, 30% |
Demand = 3000, 30% |
Demand = 4000, 20% |
Profit |
|
|
Make 1000 |
|||||
|
Make 2000 |
|||||
|
Make 3000 |
|||||
|
Make 4000 |
In: Operations Management
In: Operations Management
2. Consider the Leader-Member Exchange Theory, what do you see as the significant contradiction between this theory and Fiedler’s Contingency Theory when it comes to leadership styles. Explain fully.
3. Explain Transformational Leadership and Charismatic Leadership. What do you see as similarities in these two styles and what do you see as dissimilarities. Explain fully giving examples.
In: Operations Management
Discuss considerations that a restaurant owner or manager should take into account before deciding between the following alternatives: pur- chasing an expensive piece of equipment to make hamburger portions of uniform size, or employing people on hourly wages to do the same work, along with buying inexpensive portion scales for them to work with.
In: Operations Management
1. Fiedler’s Contingency Theory of Leadership was an important advanement in our understanding effective leadership styles. But, it was just a beginning in our understanding of the “contingencies” that impact leadership effectiveness. Summarize Fiedler’s leadership contingency factors. Now consider House’s Path-Goal Theory, what did the Path-Goal Theory of Leadership add to our understanding of leadership contingencies. What contingency did House consider that Fiedler did not? Explain fully.
In: Operations Management
Sampling 4 pieces of precision-cut wire (to be used in computer assembly) every hour for the past 24 hours has produced the following results:
Hour Xbar R Hour
Xbar R Hour Xbar
R Hour Xbar R
1 3.15 0.76 7 3.15
0.53 13 3.11 0.90
19 3.31 1.66
2 3.10 1.13 8 2.65
1.08 14 2.73 1.31
20 2.89 1.14
3 3.12 1.48 9 3.12 0.71 15
3.02 1.11 21 2.65
1.08
4 3.49 1.31 10 2.95 1.38
16 2.84 0.45 22
3.18 0.46
5 3.17 1.22 11 2.73
1.17 17 2.76 1.38
23 2.84 1.53
6 2.86 0.37 12 2.87 0.35
18 2.74 1.24 24
2.74 1.02
Based on the sampling done, the control limits for 3-sigma x
overbarx chart are (round all intermediate calculations to three
decimal places before proceeding with furthercalculations):
Upper Control Limit (UCL Subscript x overbarUCLx) = ?
Lower Control Limit (LCL Subscript x overbarLCLx) = ?
Based on the x overbarx-chart, the wire cutting process has
been
IN CONTROL or OUT OF CONTROL?
The control limits for the 3-sigma R-chart are (round all
intermediate calculations to three decimal places before proceeding
with further calculations):
Upper Control Limit (UCL Subscript Upper RUCLR) = ?
Lower Control Limit (LCL Subscript Upper RLCLR) = ?
Based on the R-chart, the wire cutting process has been
IN CONTROL or OUT OF CONTROL ?
In: Operations Management
What is the difference between the management requirements for project costing and financial accounting. What are the different reports required.
In: Operations Management
An employer’s arbitration clause will be enforced unless the employee can show that the clause is both procedurally and substantively unconscionable.
a. True
b. False
An example of implicit bias would be where an individual has a conscious bias against persons of a particular race.
a. True
b. False
In a Title VII disparate treatment claim based on sex, the plaintiff will not prevail without proof that “but for” his sex the employer would not have taken the same adverse employment action.
a. True
b. False
An employer may require all of its employees to speak English if it can demonstrate that customers complained about employees speaking Spanish?
a. True
b. False
In: Operations Management
Anecdotal notes are one way to document learning. What are some advantages and disadvantages for this assessment strategy? What do teachers need to be aware of when using this strategy?
In: Operations Management
You manage a fabrication shop and have collected the following measurements (cm). You collected 7 random samples each day for a month. Below find the average of those 7 measurements and the range. You do not know the natural variation. Construct an x-bar and range chart. Include several sentences about your conclusions after analyzing your charts.
| Sample | Sample mean (cm.) | Sample range |
| 1 | 50 | 13 |
| 2 | 53 | 11 |
| 3 | 53 | 13 |
| 4 | 55 | 13 |
| 5 | 54 | 11 |
| 6 | 51 | 10 |
| 7 | 52 | 9 |
| 8 | 53 | 10 |
| 9 | 52 | 9 |
| 10 | 53 | 10 |
| 11 | 55 | 12 |
| 12 | 54 | 10 |
| 13 | 53 | 11 |
| 14 | 54 | 13 |
| 15 | 54 | 9 |
| 16 | 50 | 10 |
| 17 | 52 | 11 |
| 18 | 54 | 9 |
| 19 | 52 | 13 |
| 20 | 52 | 12 |
| 21 | 53 | 12 |
| 22 | 52 | 10 |
| 23 | 54 | 9 |
| 24 | 55 | 13 |
| 25 | 57 | 11 |
| 26 | 56 | 10 |
| 27 | 57 | 13 |
| 28 | 56 | 9 |
| 29 | 58 | 9 |
| 30 | 56 | 9 |
| 31 | 58 | 9 |
Continuing on with the data from the fabrication shop (cm. measurements), you have the following additional information. The standard deviation is 1.3 cm. The contract specifies that parts will be between 50 cm and 60 cm. What is the Cp? Express with 2 decimal places.
In: Operations Management
8. Accepting a price discount for ordering larger quantities leads to lower levels of anticipation inventory.
True or False
9. Prices may not be directly related to costs in the market approach
True or False
10. Farmers turn to market and production contracts when they perceive the efficacy of spot markets to be inadequate in handling their risks and processors turn to contracts as a way to encourage farmers to produce specific products at desired times.
Ture or False
11. Competitive bidding, in general, is the most efficient means of obtaining a fair price for items bought.
True or False
12. Fixed costs generally remain the same regardless of the number of units produced.
Ture or false
13. In formation regarding prices trends cannot be easily obtained because most organizations are reluctant to share cost and price information
True or False
14. The process for bidding in the public sector is generally similar to the private sector, although there are a few important differences.
True or False
15. The purchasing manager indexes( PMIs) are leading economic indicators derived from monthly surveys of purchasing managers about forecasted company conditions.
True or False
In: Operations Management
how do you recruit hire place onboard new workforce members.
In: Operations Management
Why are appointment systems used? What decisions are necessary to design an appointment system?
Describe some practical examples of the single-resource sequencing problem.
In: Operations Management
Describe in detail the different parts of a Control Chart.
Consider a control chart that is constructed to track student attendance. Give two examples of random variation and 3 examples of assignable cause variation.
In: Operations Management