The number of heart surgeries performed at Heartville General Hospital has increased steadily over the past several years. The hospital's administration is seeking the best method to forecast the demand for such surgeries in year 6. The data for the past five years are shown below.
Year | 1 | 2 | 3 | 4 | 5 |
---|---|---|---|---|---|
Demand | 44 | 47 | 54 | 57 | 61 |
The hospital's administration is considering the following forecasting methods. Begin error measurement in year 3, so all methods are compared for the same years
i. Exponential smoothing, with a 0.6. Let the initial forecast for year 1 be 44, the same as the actual demand.
ii, Exponential smoothing, with o: 0.9 Let the initial forecast for year 1 be 44, the same as the actual demand.
iii. Trend projection with regression
iv. Two-year moving average.
v. Two-year weighted moving average, using weights 0.6 and 0.4, with the more recent data given more weight.
If MAD is the performance criterion chosen by the administration, which forecasting method should it choose? Trend projection with regression
If MSE is the performance criterion chosen by the administration, which forecasting method should it choose?
In: Other
Sam's Cat Hotel operates 52 weeks per year, 7 days per week, and uses a continuous review inventory system. It purchases kitty litter for $10.75 per bag. The following information is available about these bags. Refer to the standard normal table for z-values.
>Demand 95 bags/week
>Order cost $56/order
>Annual holding cost = 30 percent of cost
>Desired cycle-service level = 99 percent
>Lead time = 4 week(s) (28 working days)
>Standard deviation of weekly demand = 20 bags
>Current on-hand inventory is 325 bags, with no open orders or backorders
a. What is the EOQ?
Sam's optimal order quantity is _______ bags. (Enter your response rounded to the nearest whole number.)
What would be the average time between orders (in weeks)?
The average time between orders is _______ weeks. (Enter your response rounded to one decimal place.)
b. What should R be? The reorder point is 118 bags. (Enter your response rounded to the nearest whole number.)
c. An inventory withdrawal of 10 bags was just made. Is it time to reorder?
It is not time to reorder.
d. The store currently uses a lot size of 490 bags (i.e., Q 490). What is the annual holding cost of this policy?
The annual holding cost is $ 817.08. (Enter your response rounded to two decimal places.)
What is the annual ordering cost?
The annual ordering cost is $ 615.51. (Enter your response rounded to two decimal places.)
Without calculating the EOQ, how can you conclude from these two calculations that the current lot size is too large?
A. There is not enough information to determine this.
B. When Q 490, the annual holding cost is less then the ordering cost, therefore Q is too small.
C. When Q 490, the annual holding cost is larger than the ordering cost, therefore Q is too large.
D. Both quantities are appropriate
e. What would be the annual cost saved by shifting from the 490-bag lot size to the EOQ?
The annual holding cost with the EoQ is S 708.69. (Enter your response rounded to two decimal places.)
The annual ordering cost with the EOQ is $ 709.65. (Enter your response rounded to two decimal places.)
Therefore, Sam's Cat Hotel saves $ 14.25 by shifting from the 490-bag lot size to the EOQ. (Enter your response rounded to two decimal places.)
In: Other
Audit sampling involves applying an audit procedure to less than 100 percent of the population for
the purpose of evaluating some characteristics of the population. The fact that an audit involves
sampling is noted in the scope paragraph of the auditor’s report, which contains the phrase “An
audit includes examining, on a test basis.” When an auditor uses sampling, an element of
uncertainty enters into the auditor’s conclusions.
Required:
a) Explain why auditor’s still use sampling techniques despite the uncertainties that are
inherent in audit conclusions drawn on samples.
b) As an auditor what will be your justification for using statistical sampling instead of nonstatistical
sampling in auditing account receivables. Give three justifications
c) Outline five quality control procedures the auditor may implement to ensure that the
auditors work is of standards.
d) You overheard the following comments during a conversation between Auditor Kaakaba
and Auditor Kasanga about a specific sampling application.
i. “Using non-statistical sampling is so much easier than using statistical sampling.
Statistical sampling requires far too many judgments. Under non-statistical
sampling, I can just pick items, evaluate them, and make my decision.”
ii. “I wish non-statistical sampling were allowable in generally accepted auditing
standards audits. In some cases, the additional time required by statistical sampling
just isn’t worth the benefits.”
iii. “Once we control the sampling risk, we’re home free. Assuming we select a
representative sample, there’s nothing else that we need to worry about.”
iv. “Be careful if you try to set sampling risk at too low a level. You will need to select
more items, which will increase the amount of audit time.”
v. “Those transactions with Wimbey are always so difficult to audit. Let’s exclude
them from our sampling frame. We can pick other items and have a sufficiently
large sample to meet generally accepted auditing standards.”
vi. “I’m about to perform a walkthrough on Flushing’s processing of sales transactions
to understand their nature. What level of sampling risk should I consider in planning
my sample of transactions?”
Required:
With reference to appropriate professional standards and practices state whether each of the
above statements is valid or not a valid and why you think so. Your responds must be very
brief.
In: Other
Answer the below questions :
A- PW for machine C =
B- Based on the PW value you got in the previous questions, which machine we should select? type you explanation below
In: Other
Which of the following is a disadvantage of the matrix design?
Resource utilization is inefficient. |
||
Decision making is decentralized. |
||
A single head has to overlook multiple divisions. |
||
There is low flexibility. |
||
Additional time is required for meetings and coordination. |
In: Other
Gilmore Framing (GF) specializes in framing artwork for mid-sized commercial projects. Its clients are largely brokers who contract to provide “art” to decorate new or renovated hotels. The brokers send the unframed artwork to GF to mount and frame.
The process at GF involves two steps, Frame Construction and Mounting. There is one Frame Construction Station and one worker at Mounting.
The Frame Construction Station handles the artwork in batches. The batch size is set to be 12 pieces of artworks/batch. A 5-minute setup for each piece of art is required before the batch processing. Then the frames for the whole batch of artworks will be constructed all together, which takes on average 1.5 hours. These 1.5 hours processing time does not change when the batch size changes.
At Mounting, art pieces are matted and placed in a frame. Mounting is largely a manual operation and does not require a set up. The worker at the mounting finishes one piece of artwork in 10 minutes.
Please use the information provided to answer the following 7 questions.
1. Which kind of batching the Frame Construction Station is doing?
A. Sequential Batching B. Simultaneous Batching
2. The stage capacity of Frame Construction is ______ pieces/hour? (Keep one decimal in your answer.)
3. The stage capacity of Mounting is _______ pieces/hour.
4. The bottleneck of the process is ______.
A. Frame Construction B. Mounting
5. If the demand to the process is 5 pieces of artworks/hour, the flow rate is ______ pieces/hour.
6. If the demand to the process is 4 pieces of artwork/hour, the stage utilization of Frame Construction is _______; the stage utilization of Mounting is _______.
A. 66.7%; 80% B. 83.3%; 80% C. 83.3%, 66.7% D. 66.7%, 80%
7. Please indicate which of the following CANNOT improve the process capacity.
A. Increase the batch size at Frame Construction.
B. Add one more worker to Mounting.
C. Reduce the setup time at Frame Construction.
D. None of the above.
In: Other
In: Other
Software Engineering
A freight forwarding company will develop a tracking system application that can provide convenience for consumers in sending goods to various locations. Some of the conveniences of this application are Consumers can send goods with a home pickup system so that consumers just make an order for delivery of goods, then the goods will be picked up and delivered to the destination location.Consumers can check the position of the goods that are on the way with their smartphone as well as the ease of making payments using various online payment systems. In addition, the application can also be used by companies to track vehicles used for shipping goods with real time information on the position, condition of the vehicle, driver's condition and information on the goods being transported.Based on thiscase,
Answer the following questions:
Using Function Point analysis, calculate the function points for the completion of the application development project and identify the activities carried out for the development of this application in the form of WBS (work breakdown structure).
In: Other
In: Other
Deadlock –Banker’s Algorithm
A system has three resource types (A, B, C) and four processes {P1, P2, P3, P4 }. The total units of system resources are: (8, 5, 4) units of A, B and C, respectively. The maximum demands for each process is P1(1,2,3), P2(3,2,1), P3(6,5,4) and P4(4,4,2). The current allocation is: P1(0,1,1), P2(2,2,0) and P3(3,0,1) and P4(1,0,1).
(a) Allocation table is given for the 3 processes with the following four columns: PROCESS, ALLOCATION, MAX and NEED. And fill this table with the current allocation state.
(b) Is this state a safe state? Explain your answer by identifying a successful future sequence of processes that makes the state safe, or by explaining which processes are part of the problem that makes the state unsafe?
PROCESS ALLOCATION MAX NEED
A B C A B C A B C
* P0 4 5 0 1 3 6 3 2 6 (*P0 is just an example)
P1 0 1 1 1 2 3
P2 2 2 0 3 2 1
P3 3 0 1 6 5 4
P4 1 0 1 4 4 2
In: Other
S & Y are partners with profit sharing ratio as 2:1. The position of the firm 31st December 2004 when they decided to dissolve the business was as follows:
Liabilities | Rs. | Assets | Rs. | |
---|---|---|---|---|
Sundry Creditor | 1,50,000 | Plant & Machinery | 2,50,000 | |
General Reserve | 1,00,000 | Furniture | 40,000 | |
Capital Accounts: | Stock | 1,00,000 | ||
S quad2,20,000 | Debtors | 2,00,000 | ||
Y quad2,20,000 | 4,40,000 | Cash at bank | 1,00,000 | |
Total | 6,90,000 | Total | 6,90,000 |
The details or realization was as follows:
1. S took over plant & machinery and furniture at book value less 10%
2. Y took over the stock at Rs. 1,75,000
3. Debtors realized Rs. 1,85,000
4. Sundry creditors were settled at a discount of 5%
Required: Prepare necessary journal entries and ledger accounts to close the books of the firm.
In: Other
Case Exercise: Apple
The following questions are based on key symptoms (both favorable and unfavorable) of Apple and underlying causes that affect key symptoms as they are observed in the case. In addition, there is a general question on solutions that also addresses the causes. Each multiple choice and short answer question number under Key Symptoms corresponds to the same question number under Underlying Causes (e.g., Question 3 under Key Symptoms 1 corresponds to Question 3 under Underlying Causes 1).
Before beginning this exercise, you will need to read the Apple case.
Key Symptoms 1
Please answer the following multiple choice questions.
1. Since 2006 Apple has reported gross margins of over
multiple choice 1
20%.
25%.
30%.
35%.
None of the answers are correct.
2. When Steve Jobs returned to Apple, he
multiple choice 2
strengthened relationships with third-party software developers.
created an alliance with Microsoft.
wooed Adobe to produce Mac-compatible programs.
released the iPod.
All of the answers are correct.
3. In 2018, what worried investors about the Apple computer business?
multiple choice 3
a spike in quantity demanded of Apple’s computer products
a 5% decline in sales of Apple’s computer products
a relaunch of the iMac with complete redesign
a lawsuit from non-Asian companies that accuses Apple of stealing their design
None of the answers are correct.
4. What was Apple Inc.’s name, prior to 2007?
multiple choice 4
Apple Computers
Apple Inc.
Apple Macintosh
Apple I
Apple II
5. Since the death of the founder, Apple has
multiple choice 5
reduced spending on R&D.
launched the iPad.
launched only one new physical product.
launched many new physical products.
None of the answers are correct.
In: Other
Luxury and Speed at Louis Vuitton
This activity is important because agile organizations rely on uniquely flexible, organic structures that can respond quickly to customer and market needs. Managers should be aware of this type of structure, as it is increasingly needed in global markets where the time from manufacturing to stores is faster than ever.
The goal of this activity is to demonstrate your understanding of organizational structure by reading a case and answering questions that follow.
Read the following case about Louis Vuitton and choose the best answer to each question.
Agile production is the application of advanced technology, processes and employee training that allow a company to respond quickly and efficiently to market needs, while maintaining quality.
Louis Vuitton, a private $50 billion company founded in 1854, is a “suborganization” of Louis Vuitton Moët Hennessy (LVMH), a public company. LVMH has a decentralized structure that allows its sub-organizations to operate independently.
Quality is synonymous with Louis Vuitton (LV) luxury leather goods, but certainly not what you think of when hearing “agile production.” However, Louis Vuitton is a leader in luxury goods time-to-market manufacturing, with low production quality defects and work processes that rely on highly skilled workers.
How can it be possible to combine speed, quality, and changing trends? Louis Vuitton credits agile production. With 460 stores in 50 countries in 2018, the newest 2019 manufacturing sites in France have natural light, fewer supervisors and modular workstations. Along with the fast-to-market, high-quality processes, the company reduces waste and meets environmental protection standards.
Hiring highly skilled employees is very important because workers may complete any part of the product. The company states that it hires only 10% of applicants and that they must have “superior skills.” Even then, the new employees take part in six months of training. It’s not just the employees who are highly skilled. The high-tech machines easily switch modes to adapt to the stage of production. The gains are not just in speed but in lower defects and fewer returns.
The parent company LVMH states that its goal is for Louis Vuitton to “strive to master their distribution: in this way, they offer their clientele unique purchasing experiences.”
Question 1: Louis Vuitton would be considered what type of organization?
a. Hierarchical
b. Mechanistic
c. Matrix
d. Multicultural
e. Organic
Question 2: The business environment for Louis Vuitton would be considered ________ and, therefore, needing ________.
a. Stable; low-cost
b. Dynamic; Stability
c. Low-cost; stability
d. Dynamic; Flexibility
e. Stable; Stability
Question 3: A key part of agile work at Louis Vuitton is having employees who are?
a. Not too specialized and can work at different stages of the production process.
b. Able to train other employees in their specialization.
c. From other industries from which they can bring ideas for new products.
d. Able to work in a highly centralized, formalized environment.
e. Highly specialized and experts in one area of production.
Question 4: The Louis Vuitton new manufacturing sites in France are not consolidated into one very large factory, so the smaller size will help?
a. Increase centralization.
b. Decrease organic nature.
c. Increase formalization
d. Lower formalization.
e. Increase span of control.
In: Other
In: Other
Bakery A sells bread for $2 per loaf that costs $0.80 per loaf to make. Bakery A gives a 75% discount for its bread at the end of the day. Demand for the bread is normally distributed with a mean of 300 and a standard deviation of 30. What order quantity maximizes expected profit for Bakery A?
a) 324.00
b) 300.17
c) 325.25
In: Other