Premium Essay

Qmb 500

In:

Submitted By npd2206
Words 677
Pages 3
BSuppose that 5000 sales invoices are separated into four strata. Stratum 1 contains 50 invoices, stratum 2 contains 500 invoices, stratum 3 contains 1000 invoices, and stratum 4 contains 3450 invoices. A sample of 500 sales invoices is needed.
a) what type of sampling should you do? why?
A stratified random sampling is suitable for this study. This is because the population of invoices is heterogenous which results in increase in the variance of the estimators. When the population is divided into homogeneous strata and stratified random sampling is adopted a reduction in the variance of the estimators is attained.

b) Explain how you would carry out the sampling according to the method stated in (a)
The size of the population is 50 + 500 + 1000 + 3450 = 5000
The size of the sample is 500
The sampling fraction is 500/5000 = 0.10 = 10%
From stratum 1, a simple random sample of size 5 (10% of 50) is chosen.
From stratum 2, a simple random sample of size 50 (10% of 500) is chosen.
From stratum 3, a simple random sample of size 100 (10% of 1000) is chosen.
From stratum 4, a simple random sample of size 345 (10% of 3450) is chosen.
Thus a stratified random sample of size 5 + 50 + 100 + 345 = 500 is obtained.

c) Why is the sampling in (a) not simple random sampling?
In simple random sampling all possible samples of size 500 are given the same probability of being selected. In stratified random sample, this not the case. For example the probability of selecting 500 invoices from stratum 4 is 0. Only 345 invoices are selected from stratum 4.

The NBC hit comedy Friends was TiVo's most popular show during the week of April 18-24, 2004. According to the Nielsen ratings, 29.7% of TiVo owners in the United States either recorded Friends or watched it live ("Prime - Time Nielsen Ratings," USA Today, April 28, 2004, p. 3D)
Suppose you select a random

Similar Documents

Premium Essay

Karen Olsson’s Up Against Wal-Mart: Advocacy for the People

...Karen Olsson’s Up Against Wal-Mart: Advocacy for the People Karen Olsson the author of an essay called Up Against Wal-Mart where Olsson posits the employees of Wal-Mart are quite literally “up against Wal-Mart”. Olsson goes on further to provide authoritative evidence to Wal-Mart's questionable practices in regards to the treatment of its employees. More specifically Olsson goes on to point out the success that Wal-Mart has achieved; the questionable practices involved in preventing employees from unionizing; and lastly the quality of life of the underpaid and overworked employees of Wal-Mart. According to Olsson Wal-Mart’s growth from a single retail store in 1962 to 3,372 stores as of 2006; is owed to the visionary and founder of Wal-Mart, Sam Walton (608,611.) To better understand the mentality of Wal-Mart in its current state of questionable staffing and pay you first have to understand how this company originated. As Olsson explains it Walton who constantly looked for ways to maximize profit and minimize expenses based his business on a fairly simple yet successful business model. That model being one in which high sales volume at lower prices generates greater profit margins. Walton’s frugality extended beyond just the selling of goods and making profit. He looked for ways to keep overhead down, payroll down, and even the personal indulgences a CEO of company might typically have. Olsson paints this very image of Walton: “The company grew, in no small part, by . . ....

Words: 1167 - Pages: 5

Premium Essay

Wal-Mart

...Wal-Mart MKTG305-06 Marketing Management Abstract Wal-Mart is a Fortune 500 international country with 5,651 stores in 26 countries. Wal-Mart is located in different countries, possibly under a different name. This paper will discuss the four Ps of marketing and any differences observed in making this company international. Wal-Mart Wal-Mart is a Fortune 500 international business. Wal-Mart employs 780,000 associates in 5,651 stores in 26 countries. The main corporate office of Wal-Mart is in Bentonville, Arkansas. Wal-Mart first opened in Rogers, Ark in 1962. The idea of discount retailing was not new, but Sam Walton, the founder, wanted a new type of store. To only name four countries in which Wal-Mart stores can be found Argentina, Honduras, South Africa, and Swaziland, but they may be seen under a different name in each country. In Argentina, Wal-Mart may be known as Changomas. In Honduras, Wal-Mart may be seen as Centroamérica. In South Africa, Wal-Mart may be seen as Massmart. In Swaziland, Wal-Mart may be seen as Massmart (Wal-Mart, 2012). The Four P Components of the Marketing Mix were Product, Place, Promotion, and Price. The product is the items or services the company sales. The place is the location of the company. The promotion is the ads used to sale the products or service to the customers. The price is the amount of money that the customers are willing to pay for the product or service while the company can still make money. The Evolution...

Words: 1264 - Pages: 6

Free Essay

Hrm 531

...Operational Gap: Option 1 Ashley Nunley HRM/531 Sept. 3, 2012 Phillip Norris Memo To: Hiring manager of HUB Operation in FedEx Express From: Ashley Nunley Date: Sept. 3, 2012 Message To Whom It May Concern: This memo is to inform the hiring manager about the operational gap within the HUB Operations as a package handler. FedEx is considered a Fortune 500 company and was voted one of Black Enterprise Magazine’s 40 Best Companies of Diversity. FedEx is mostly known to the world as a global company that will deliver packages in a timely manner with out any damager being done to the package. POSITION DETAILS AND DUTIES: Depending on which area you are located in the hub there are many different duties. Some of the duties of a package handler in the night operations are to provide movement of the packages, documents, and dangerous goods through the HUB in a timely manner. They are to guarantee the use of safety procedures when handling packages. Scan packages for system records of matching, manually sort packages as they come down the conveyer belt, complete organized transactions such as: stocking, receiving, transfers, returns, etc. when assigned to stock supply area. Also when in stock supply, you have to maintain inventory of personal uniforms and safety equipment in accordance with corporate standards. REQUIERMENTS AND SKILLS: There are not many requirements to become a package handler. You have to have either a High School diploma or a G.E.D. You must be...

Words: 285 - Pages: 2

Premium Essay

Fin370 Week 3 Strategic Initiative Paper

...Strategic Initiative Paper A major part of a company’s success is planning. A business needs effective strategic planning to remain competitive and grow financially. For a company to reach its full financial potential, a planning process must exist. Strategic planning serves as the roadmap for a company’s financial efficiency. Wal-Mart developed the strategic planning initiative of Every Day Low Price (EDLP), which prices it products at low, affordable prices. Wal-Mart’s strategic planning has made the store one of the best known organizations and industry leaders in low prices. The strategic planning initiative effects costs and the sales within the organization that can also create risks; however, if managed effectively can make the discount giant even more profitable. Strategic Planning Initiative, Financial Planning Wal-Mart has grown from modest beginnings to become one of the most recognizable store chains in the world by operating almost 11,000 stores in 27 countries with more than two million employees (Wal-Mart, 2012). With such a large, well-known organization the company strives to remain competitive within a global market. To succeed, the company used strategic planning to identify an aggressive strategy within their 2012 annual report. Wal-Mart management entitled the strategy“Delivering Everyday Low Price (EDLP). According to Wal-Mart’s 2012 annual report, the EDLP strategy represents an essential component of its message of delivering the lowest prices...

Words: 1429 - Pages: 6

Premium Essay

Lowes Home Improvement

...Lowe’s Home Improvement When choosing a retailer to research, I started to research the top retailers of fortune 500 retailers of 2012. The top 10 retailers included in Costco, Home Depot, Best Buy, Lowe’s, Staples, Toys r Us, Office Depot, GameStop, Bed Bath & Beyond and Auto Zone (CNN Money). I, occasionally, shop all of these retailers but was shocked to see a few of these on the list of the top 10. I was defiantly surprised at Costco being #1 on the list in revenues. I am defiantly aware of what Home Depot is doing because of working for Lowe’s. I have done many reports on retailers over the last 5 years I have been in school but have never done a report on Lowe’s. I have done Home Depot before but never have given Lowe’s a spot to shine. I have seen, and happy to be a part, an amazing transformation over the last few years of where they are trying to take the company and feel that I would be proud to write a report on the #4 top retail of 2012. Finding Lowe’s on the list was not shocking but I was not aware of them being #4. I am proud of what they have accomplished in recent years and feel like they will climb up this list and remain a strong company on the overall fortune 500 list. Lowe’s has done many changes over the last few years in the way of marketing, social media and customer service. They have done a complete overhaul of how they worked and operated since I have been a part of their team since 2003. Social media has been a huge focus over the 3 last year. Lowes...

Words: 399 - Pages: 2

Free Essay

Marketing

...in a central location and studied via paper or computerized instrument—without interviewer assistance; e.g., restaurant and hotel comment cards. Some advantages include: incentives may be used to increase response rate, low cost, and requires minimum staffC. A survey of 58 wholesale grocery companies scattered over the eastern United States, on their personnel management policies for warehouse personnel.AnswerBecause of the location of the personnel management participants, use the telephone interview is the best. Some advantages of this interview include: low cost, geographic coverage without dramatic increase in costs, reduced interview bias, and uses fewer more highly skilled interviewers.D. A survey of financial officers of the Fortune 500 corporations to learn their predictions for the economic outlook in their industries in the next year.AnswerUse of a personal interview is...

Words: 354 - Pages: 2

Free Essay

Microsoft

...Walmart has grown not only nationally, but also has been growing internationally. Walmart’s globalization strategy always has not been planned very well. An example of this lack of planning was the time they first entered Asia. They did not know much about Asia, and they “did not factor in the broader ecosystem- how customers come and go,” choosing inconvenient locations for the customers (Mahajan-Bansal, 2009). However, as they have grown internationally, they have managed to learn as they go along, and make improvements. They have organized and become a leader in retail. As they have monitored their progress, they could see some of their mistakes and correct those mistakes, such as paying attention to the economy of the country they are operating in. “Walmart’s approach to technology innovation is to start with the customer and the business process — and then see how technology can help, said the retail giant's Chief Information Officer Rollin Ford” (Garry, 2010). One idea for planning the advancement of technology was to ask employees for their input. They were asking 2.1 million employees for suggestions on energy management, and saved over $1 million dollars (Garry, 2010). In June 2007, Walmart announced “a series of financial services to its customers, through Walmart Money Centers (check cashing, bill payments, and international money transfers). Also, Walmart will issue a Walmart MoneyCard, a prepaid Visa card, which will cost $8.95, for buying gas, and for shopping...

Words: 594 - Pages: 3

Premium Essay

Walmarts Ethical Behavior

...qwertyuiopasdfghjklzxcvbnmqwertyuiopasdfghjklzxcvbnmqwertyui opasdfghjklzxcvbnmqwertyuiopasdfghjklzxcvbnmqwertyuiopasdfgh jklzxcvbnmqwertyuiopasdfghjklzxcvbnmqwertyuiopasdfghjklzxcvb nmqwertyuiopasdfghjklzxcvbnmqwertyuiopasdfghjklzxcvbnmqwerty uiopasdfghjklzxcvbnmqwertyuiopasdfghjklzxcvbnmqwertyuiopasdf ghjklzxcvbnmqwertyuiopasdfghjklzxcvbnmqwertyuiopasdfghjklzxc vbnmqwertyuiopasdfghjklzxcvbnmqwertyuiopasdfghjklzxcvbnmqwer tyuiopasdfghjklzxcvbnmqwertyuiopasdfghjklzxcvbnmrtyuiopasdfg hjklzxcvbnmqwertyuiopasdfghjklzxcvbnmqwertyuiopasdfghjklzxcv bnmqwertyuiopasdfghjklzxcvbnmqwertyuiopasdfghjklzxcvbnmqwert yuiopasdfghjklzxcvbnmqwertyuiopasdfghjklzxcvbnmqwertyuiopasd fghjklzxcvbnmqwertyuiopasdfghjklzxcvbnmqwertyuiopasdfghjklzx cvbnmqwertyuiopasdfghjklzxcvbnmqwertyuiopasdfghjklzxcvbnmqwe rtyuiopasdfghjklzxcvbnmrtyuiopasdfghjklzxcvbnmqwertyuiopasdf ghjklzxcvbnmqwertyuiopasdfghjklzxcvbnmqwertyuiopasdfghjklzxc vbnmqwertyuiopasdfghjklzxcvbnmqwertyuiopasdfghjklzxcvbnmqwer tyuiopasdfghjklzxcvbnmqwertyuiopasdfghjklzxcvbnmqwertyuiopas dfghjklzxcvbnmqwertyuiopasdfghjklzxcvbnmqwertyuiopasdfghjklz xcvbnmqwertyuiopasdfghjklzxcvbnmqwertyuiopasdfghjklzxcvbnmrt yuiopasdfghjklzxcvbnmqwertyuiopasdfghjklzxcvbnmqwertyuiopasd fghjklzxcvbnmqwertyuiopasdfghjklzxcvbnmqwertyuiopasdfghjklzx cvbnmqwertyuiopasdfghjklzxcvbnmqwertyuiopasdfghjklzxcvbnmqwe rtyuiopasdfghjklzxcvbnmqwertyuiopasdfghjklzxcvbnmqwertyuiopa sdfghjklzxcvbnmqwertyuiopasdfghjklzxcvbnmqwertyuiopasdfghjkl ...

Words: 415 - Pages: 2

Premium Essay

Target Swot Analysis

...dependent on the discretionary spending of the customers. Strengths Large retailer with established presence and robust brand strength Target is one of the largest retailers in the US. The company was ranked 19th in the America's most admired companies list compiled by fortune magazine for 2009. According to a survey, Target was ranked 2nd most valuable brands in the US after Wal-Mart. In 2009, the company concentrated in building its brand despite price cuts and has invested in the same. Its brand value grew by 50% compared to Wal-Mart's brand value which grew at 20%. In the 2009 rankings Target with this investment in brands has leaped ahead of Best Buy and Home Depot to attain the number two spot. It is ranked 30th in the list of Fortune 500 companies. The company operated 1,740 stores in 49 states in the US and the District of Columbia, and 38 distribution centers to support its operations. By virtue of its strong brand value, Target has a loyal and satisfied shopper base and it can further harness its brand potential to attract more customers. A strong market position enhances Target's market penetration and adds to its bargaining power. Additionally, the reputation it enjoys will enable it to effectively market its strong private label portfolio. Private label products enjoy higher margins than the national brands. Target enjoys a strong brand positioning which will facilitate higher and...

Words: 904 - Pages: 4

Free Essay

Paper Design and Methodology

...Company Profile Stryker Corporation, together with its subsidiaries, operates as a medical technology company. The company operates in three segments: Reconstructive, MedSurg, and Neurotechnology and Spine. The Reconstructive segment offers orthopaedic reconstructive (hip and knee) and trauma implant systems, as well as other related products. The MedSurg segment provides surgical equipment and surgical navigation systems, endoscopic and communications systems, patient handling and emergency medical equipment, reprocessed and remanufactured medical devices, and other medical device products. The Neurotechnology and Spine segment includes neurovascular products, spinal implant systems, and other related products. The company sells its products through local dealers and direct sales force to doctors, hospitals, and other healthcare facilities, as well as through third-party dealers and distributors primarily in the United States, Ireland, Germany, France, Switzerland, the United Kingdom, Japan, Canada, the Pacific region, and Latin America. Stryker Corporation was founded in 1941 and is headquartered in Kalamazoo, Michigan. Stryker Corporation is a leading maker of specialty surgical and medical product based in Kalamazoo, Michigan. although not yet the household name, Stryker is one of the most consistent profitable growth company in America. In 2003, Stryker posted record sales of 3.6 Billion. After John Brown became chairman in 1977, Stryker achieved 20 percent or more annual...

Words: 422 - Pages: 2

Free Essay

Effects of Offshoring on Business

...employment agency. Now in the 21st century a great majority of US companies has outsourced their call centers to India and other third world countries in an effort to reduce operation cost. The question is has offshoring improved customer service or hampered customer service. The biggest disadvantage with offshoring is loss of knowledge, cultural issues, potential security issues, language barrier, finding qualified personnel, local infrastructure, control and flexibility offered by local law and greater effort for knowledge transfer and process setup. Analysis India call centers help US companies cut overhead costs by decreasing the need for capital investment, availability of educated and skilled workforce. However what do these Fortune 500 companies sacrifice by outsourcing positions to India? An alternative solution to outsourcing can be Homeshoring otherwise known as homesourcing can be an excellent alternative. Homesourcing workers are based out of their own homes and normally supply their own computing and...

Words: 385 - Pages: 2

Premium Essay

Organizational Planning

...University of Phoenix Material Organizational Planning Worksheet Complete each section below. Be sure to cite your sources when necessary. Fortune 500 Company name |Pfizer | The company’s internal and external stakeholder’s |Internal stakeholder’s |External stakeholder’s | |Employees |Shareholders | |Departments (Marketing, R&D, Clinical, Medical education, PR) |Patients | |Managers |Doctors | |CEO/Owner |Industry trade associations | |Labor groups |Investors | | |Suppliers/Partners | Company’s mission and vision Company’s mission |According to "Company...

Words: 366 - Pages: 2

Free Essay

Cv Template

...Name Your_id.pgpm15c@greatlakes.edu.in +91 9999999999 Name Your_id.pgpm15c@greatlakes.edu.in +91 9999999999 Profile Summary * 32 months of consulting and analytical experience in the field of HR, compensation and benefits. * Executed compensation studies across multiple geographies for some of the Fortune 500 companies such as 3M, Emerson, UTC, P&G, Johnson & Johnson Academic Qualification Qualification | Year | School/Institute(Board/University) | Marks | PGPM | 2014-2015 | Great Lakes Institute of Management, Chennai | - | BA(Hon) Business Economics | 2007-2010 | Institute name, university name | 100% | XII Std | 2006-2007 | School name, Board | 100% | X Std | 2004-2005 | School name, Board | 100% | Skills Summery Data Analysis, Oracle E-Business Suite, Oracle Forms and Reports, Design and Web Tools, Sencha Touch, Mobile Technologies, Business Rule Management System Professional Experience Company name Senior Analyst Gurgaon August 2010 – April 2012 * Performed job benchmarking, data analytics, auditing & reporting of compensation & benefits data for clients * Subject Matter Expert of the client interface tool of Aon Hewitt, i.e Total Compensation Center * Managed a team of 6 people as the Project Manager for TCM studies of Latin America region * Selected...

Words: 485 - Pages: 2

Premium Essay

Dell and Grove

...Michael Dell is the founder and CEO of Dell Computer Corporation. His entrepreneurship and fascination with computers can be traced back as far to his early adolescent years. This simple interest he had in computers shortly became the startup for Dell Computer Corporation in 1984. With his stock increasing near the peaks of 90,000 percent, rating it the number one stock in the 1990's; it's no wonder how he became the youngest CEO of a Fortune 500 Company at the tender age of 27. Mr. Dell believed that 'by placing the customer at the epicenter' and creating a strategic concept 'based on customers' needs and preferences' would be the key to a successful company. (Krames, 2003, p. 59) Having a direct model 'based on a one-to-one relationship between the company and the customer' was how he made Dell so successful with ''no intermediaries, no middlemen'. (Krames, 2003, p. 59) Andy Grove is the co-founder and former CEO of Intel. The company he co-founded in the 1960's success can be contributed to his suspicious mentality of 'only the paranoid survive.' (Krames, 2003, p. 135) This man was considered as a legend of this industry by many and built Intel into the biggest computer chipmaker in the world at that time. Mr. Grove was credited for 'his role in fueling the computer revolution' by being named Person of the Year in 1997 by Time magazine. (Krames, 2003, p. 135) Mr. Grove's three-legged stool metaphor outlined how equal levels of execution and strategy in technology, manufacturing...

Words: 315 - Pages: 2

Premium Essay

Careers in It Journal: Salary

...3-2 Careers in IT Journal: Salary Position: Information Technology (IT) Project Manager According to the Bureau of Labor and Statistics website (newsletter) they do not keep specific information on project manager’s earnings. However, what they do indicate is that project managers salaries are based on the level of education and experience and can differ based on their regional locations. (DeVincenzo, 2006) I would suspect that a survey conducted by the Project Management Institute (PMI) in 2006, would hold true for most jobs nationally. They found that experience is a determining factor regarding salaries and most entry level positions provided a lower earning scale for the full time project managers which gave a median annual salary of $96,000, including salary and bonuses. As a nationwide median and not specific to my location it still indicates that at least 50% make more than $96,000 and the other 50% make less. (DeVincenzo, 2006) Further research regarding IT Project Managers seems to reveal some question regarding earnings and certification, do IT Project Manager need additional education and certification in order to make more money and leapfrog to higher paying positions? According to a study done by CIO.com they believe certifications is the only way an IT PM will first, get hired and second, be considered for the higher salary ranges. The survey found that more and more CIO’s believe that certifications are important and valuable for a project manager...

Words: 1109 - Pages: 5