A rectangular room measures 13 feet by 15 feet. It is going to be carpeted with carpeting that sells for $68 per square yard. a. What is the area of the room in square feet? b. If the room is drawn...
An automobile manufacturer has five outdated plants: one each in Michigan, Ohio, and California and two in New York. Management is considering modernizing these plants to manufacture engine blocks...
The distribution system for the Herman Company consists of three plants, two warehouses, and four customers. Plant capacities and shipping costs per unit (in $) from each plant to each warehouse are...
The Scottsville Textile Mill1 produces five different fabrics. Each fabric can be woven on one or more of the mills 38 looms. The sales departments forecast of demand for the next month is shown in...
Suppose that 10,000 customers in a retailers customer database are categorized by three customer types: 3,500 prospective buyers, 4,500 first time buyers, and 2,000 repeat (loyal) buyers. A sample of...
Richardson Ski Racing (RSR) sells equipment needed for downhill ski racing. One of RSRs products is fencing used on downhill courses. The fence product comes in 150-foot rolls and sells for $215 per...
In a job shop operation, four jobs may be performed on any of four machines. The hours required for each job on each machine are presented in the following table. The plant supervisor would like to...
Recall the production model from Section 1.3: Max 10x s.t. 5x 40 x 0 Suppose the firm in this example considers a second product that has a unit profit of $5 and requires 2 hours for each unit...
In Example 4.7, we used data on nonunionized manufacturing firms to estimate the relationship between the scrap rate and other firm characteristics. We now look at this example more closely and use...
GreenLawns provides a lawn fertilizer and weed control service. The company is adding a special aeration treatment as a low-cost extra service option, which it hopes will help attract new customers....
Annual revenue for Corning Supplies grew by 5.5% in 2007; 1.1% in 2008; 3.5% in 2009; 1.1% in 2010; and 1.8% in 2011. What is the mean growth annual rate over this period?
The famous Y. S. Chang Restaurant is open 24 hours a day. Waiters and busboys report for duty at 3 A.M., 7 A.M., 11 A.M., 3 P.M., 7 P.M., or 11 P.M., and each works an 8-hour shift. The following...
Bechtold Construction is in the process of installing power lines to a large housing development. Steve Bechtold wants to minimize the total length of wire used, which will minimize his costs. The...
The amounts of caffeine in a sample of five-ounce servings of brewed coffee are shown in the histogram. Make a frequency distribution for the data. Then use the table to estimate the sample mean and...
Russia has recently started a push for stronger smoking regulations, much like those in Western countries, concerning cigarette advertising, smoking in public places, and so on. The webfile named...
All-Star Bat Manufacturing, Inc., supplies baseball bats to major and minor league baseball teams. After an initial order in January, demand over the six-month baseball season is approximately...
A soft drink bottling company is interested in controlling its filling operation. Random samples of size 4 are selected and the fill weight is recorded. Table 7-17 shows the data for 24 samples. The...
Dumoor Appliance Center sells and services several brands of major appliances. Past sales for a particular model of refrigerator have resulted in the following probability distribution for demand:...
When gas expands in a cylinder with radius r, the pressure at any given time is a function of the volume: P = P(V) . The force exerted by the gas on the piston (see the figure) is the product of the...
Recently, Ashland MultiComm Services has been criticized for its inadequate customer service in responding to questions and problems about its telephone, cable television, and Internet services....
Ashley's Department Store in Kansas City maintains a successful catalog sales department in which a clerk takes orders by telephone. If the clerk is occupied on one line, incoming phone calls to the...
Mollys Candle Shop has several retail stores in the coastal areas of North and South Carolina. Many of Mollys customers ask her to ship their purchases. The following chart shows the number of...
Suppose that the R&B Beverage Company has a soft drink product that shows a constant annual demand rate of 3600 cases. A case of the soft drink costs R&B $3. Ordering costs are $20 per order and...
The Schmedley Discount Department Store has approximately 300 customers shopping in its store between 9 A.M. and 5 P.M. on Saturdays. In deciding how many cash registers to keep open each Saturday,...
Eddie Kelly is running for reelection as mayor of a small town in Alabama. Jessica Martinez, Kelly's campaign manager during this election, is planning the marketing campaign, and there is some stiff...
The manager of the Danvers-Hilton Resort Hotel stated that the mean guest bill for a week end is $600 or less. A member of the hotel's accounting staff noticed that the total charges for guest bills...
EL Computer produces its multimedia notebook computer on a production line that has an annual capacity of 16,000 units. EL Computer estimates the annual demand for this model at 6000 units. The cost...
Each rear tire on an experimental airplane is supposed to be filled to a pressure of 40 pound per square inch (psi). Let X denotes the actual air pressure for the right tire and Y denotes the actual...
Winkler Furniture manufactures two different types of china cabinets: a French provincial model and a Danish Modern model. Each cabinet produced must go through three departments: carpentry,...
According to media research, the typical American listened to 195 hours of music in the last year. This is down from 290 hours 4 years earlier. Dick Trythall is a big country and western music fan....
Grave City is considering the relocation of several police substations to obtain better enforcement in high-crime areas. The locations under consideration together with the areas that can be covered...
In alphabetical order, the six most common last names in the United States are Brown, Johnson, Jones, Miller, Smith, and Williams (The World Almanac, 2012). Assume that a sample of 50 individuals...
Dorothy Stanyard has three major routes to take to work. She can take Tennessee Street the entire way, she can take several back streets to work, or she can use the expressway. The traffic patterns...
A researcher estimates that the average revenue of the largest businesses in the United States is greater than $24 billion. A sample of 50 companies is selected, and the revenues (in billions of...
An increasing number of Americans are moving to a warmer climate when they retire. To take advantage of this trend, Sunny Skies Unlimited is undertaking a major real estate development project. The...
City Cab Company identified 10 primary pickup and drop locations for cab riders in New York City. In an effort to minimize travel time and improve customer service and the utilization of the companys...
The Darby Company manufactures and distributes meters used to measure electric power consumption. The company started with a small production plant in El Paso and gradually built a customer base...
Hatcher Enterprises uses a chemical called Rbase in production operations at five divisions. Only six suppliers of Rbase meet Hatchers quality control standards. All six suppliers can produce Rbase...
A study of 31,000 hospital admissions in New York State found that 4% of the admissions led to treatment-caused injuries. One-seventh of these treatment-caused injuries resulted in death, and...
Martys Barber Shop has one barber. Customers have an arrival rate of 2.2 customers per hour, and haircuts are given with a service rate of 5 per hour. Use the Poisson arrivals and exponential service...
Consider the following LP problem: Maximize profit = 5X + 6Y Subject to 2X + Y 120 2X + 3Y 240 X, Y 0 (a) What is the optimal solution to this problem? Solve it graphically. (b) If a technical...
In Orthogonal Design for Process Optimization and Its Application to Plasma Etching (Solid State Technology, May 1987), G. Z. Yin and D. W. Jillie describe an experiment to determine the effect of...
Morningstar publishes ratings data on 1208 company stocks (Morningstar website, October 24, 2012). A sample of 40 of these stocks is contained in the data set Morningstar. Use the data set to answer...
The following data represent the miles per gallon of a random sample of SMART cars with a three-cylinder, 1.0-liter engine. (a) Compute the z-score corresponding to the individual who obtained 36.3...
To generate leads for new business, Gustin Investment Services offers free financial planning seminars at major hotels in Southwest Florida. Attendance is limited to 25 individuals per seminar. Each...
In Hawaii, January is a favorite month for surfing since 60% of the days have a surf of at least 6 feet (Reference: Hawaii Data Book, Robert C. Schmitt). You work day shifts in a Honolulu hospital...
Dr. Mark Greenberg practices dentistry in Topeka, Kansas. Greenberg tries hard to schedule appointments so that patients do not have to wait beyond their appointment time. His October 20 schedule is...
A consumer electronics company is comparing the brightness of two different types of picture tubes for use in its television sets. Tube type A has mean brightness of 100 and standard deviation of 16,...
An assembly line consisting of three consecutive workstations produces two radio models: DiGi-l and DiGi-2. The following table provides the assembly times for the three workstations. The daily...
Consulting income at Kate Walsh Associates for the period FebruaryJuly has been as follows: MONTH INCOME ($1,000S) February ......... 70.0 March .......... 68.5 April ............ 64.8 May...
The mean annual premium for automobile insurance in the United States is $1503 (insure.com website, March 6, 2014). Being from Pennsylvania, you believe automobile insurance is cheaper there and wish...
Rick's lumberyard has 480 yd of fencing with which to enclose a rectangular area. If the enclosed area is x yards long, express its area as a function of its length.
Douglas Boats is a supplier of boating equipment for the states of Oregon and Washington. It sells 5,000 White Marine WM-4 diesel engines every year. These engines are shipped to Douglas in a...
At your school, 10% of the class are marketing majors. If you are randomly assigned to two partners in your statistics class, a) What is the probability that the first partner will be a marketing...
An article in Techno metrics by S. C. Narula and J. F. Wellington (Prediction, Linear Regression, and a Minimum Sum of Relative Errors, Vol. 19, 1977) presents data on the selling price and annual...
The Saussy Lumber Company ships pine flooring to three building supply houses from its mills in Pineville, Oak Ridge, and Mapletown. Determine the best transportation schedule for the data given in...
Each year forbes ranks the world's most valuable brands. A portion of the data for 82 of the brands in the 2013 forbes list is shown in Table 2.12 (forbes website, February, 2014). The data set...
Students taking the Graduate Management Admissions Test (GMAT) were asked about their undergraduate major and intent to pursue their MBA as a full-time or part-time student. A summary of their...
R. C. Coleman distributes a variety of food products that are sold through grocery store and supermarket outlets. The company receives orders directly from the individual outlets, with a typical...
a. Find the probability of getting exactly 4 sleepwalkers among 5 adults. b. Find the probability of getting 4 or more sleepwalkers among 5 adults. c. Which probability is relevant for determining...
A student finds data on an Internet site that contains financial information about selected companies. He plans to analyze the data and use the results to develop a stock investment strategy. What...
Don Levine Corporation is considering adding an additional plant to its three existing facilities in Decatur, Minneapolis, and Carbondale. Both St. Louis and East St. Louis are being considered....
A recent survey compared the costs of adoption through public and private agencies. For a sample of 16 adoptions through a public agency, the mean cost was $21,045, with a standard deviation of $835....
The Economic Policy Institute periodically issues reports on wages of entry-level workers. The institute reported that entry-level wages for male college graduates were $21.68 per hour and for female...
Seastrand Oil Company produces two grades of gasoline: regular and high octane. Both gasolines are produced by blending two types of crude oil. Although both types of crude oil contain the two...
Brawdy Plastics, Inc., produces plastic seat belt retainers for General Motors at its plant in Buffalo, New York. After final assembly and painting, the parts are placed on a conveyor belt that moves...
The graduate Management Admission Test (gMAT) is a standardized exam used by many universities as part of the assessment for admission to graduate study in business. The average gMAT score is 547...
Health insurers are beginning to offer telemedicine services online that replace the common office visit. Well point provides a video service that allows subscribers to connect with a physician...
Haifa Instruments, an Israeli producer of portable kidney dialysis units and other medical products, develops an 8-month aggregate plan. Demand and capacity (in units) are forecast as shown in the...
Emarpy Appliance produces all kinds of major appliances. Richard Feehan, the president of Emarpy, is concerned about the production policy for the company's best selling refrigerator. The demand for...
For years The Glass Slipper restaurant has operated in a resort community near a popular ski area of New Mexico. The restaurant is busiest during the first 3 months of the year, when the ski slopes...
Burnside Marketing Research conducted a study for Barker Foods on some designs for a new dry cereal. Three attributes were found to be most influential in determining which cereal had the best taste:...
Arnoff Enterprises manufactures the central processing unit (CPU) for a line of personal computers. The CPUs are manufactured in Seattle, Columbus, and New York and shipped to warehouses in...
Consider the following linear program: Max 2A + 3B s.t. 5A + 5B ¤ 400 Constraint1 -1A + 1B ¤ 10 Constraint 2 1A + 3B ¥ 90 Constraint 3 A, B ¥ 0 Figure shows a graph of the...
Steve Goodman, production foreman for the Florida Gold Fruit Company, estimates that the average sale of oranges is 4,700 and the standard deviation is 500 oranges. Sales follow a normal...
Allen Young has always been proud of his personal investment strategies and has done very well over the past several years. He invests primarily in the stock market. Over the past several months,...
The number of cars arriving per hour at Lundbergs Car Wash during the past 200 hours of operation is observed to be the following: NUMBER OF CARS ARRIVING FREQUENCY 3 or fewer ............. 0 4...
From the tenth floor of her office building, Katherine Rally watches the swarms of New Yorkers fight their way through the streets infested with yellow cabs and the sidewalks littered with hot dog...
The product development group at Landon Corporation has been working on a new computer software product that has the potential to capture a large market share. Through outside sources, Landons...
The following circuit operates if and only if there is a path of functional devices from left to right. The probability that each device functions is as shown. Assume that the probability that a...
USA Today posted this question on its website: "How often do you seek medical information online?" Of 1072 Internet users who chose to respond, 38% of them responded with "frequently." What term is...
Match the polar equations with the graphs labeled IVI. Give reasons for your choices. (Dont use a graphing device.) (a) r = sin(0/2) (c) r = sec(30) (e) r =1+ 4 cos 50 (b) r= sin(0/4) (d) r= 0 sin 0...
The Director of Planning for Devine Dining Inc. wishes to study the relationship between the gender of a guest and whether the guest orders dessert. To investigate the relationship, the manager...
At a local university, the Student Commission on Programming and Entertainment (SCOPE) is preparing to host its first rock concert of the school year. To successfully produce this rock concert, SCOPE...
Listed below are the 35 members of the Metro Toledo Automobile Dealers Association. We would like to estimate the mean revenue from dealer service departments. The members are identified by numbering...
The Krampf Lines Railway Company specializes in coal handling. On Friday, April 13, Krampf had empty cars at the following towns in the quantities indicated: TOWN SUPPLY OF CARS Morgantown ............
The following table provides the Dow Jones Industrial Average (DJIA) opening index value on the first working day of 1991-2010: Develop a trend line and use it to predict the opening DJIA index value...
Cloud seeding has been studied for many decades as a weather modification procedure (for an interesting study of this subject, see the article in Techno metrics by Simpson, Alsen, and Eden, A...
The Ace Manufacturing Company has orders for three similar products: Orders Product (units) A ..........2000 B .......... 500 C ..........1200 Three machines are available for the manufacturing...
Consider a variation of the PDC decision tree shown in Figure. The company must first decide whether to undertake the market research study. If the market research study is conducted, the outcome...
A winner of the Texas Lotto has decided to invest $50,000 per year in the stock market. Under consideration are stocks for a petrochemical firm and a public utility. Although a long-range goal is to...
Ken Ramsing has been in the lumber business for most of his life. Ken's biggest competitor is Pacific Woods. Through many years of experience, Ken knows that the ordering cost for an order of plywood...
Unilever Inc. recently developed a new body wash with a scent of ginger. Their research indicates that 30% of men like the new scent. To further investigate, Unilevers marketing research group...
The mean water temperature downstream from a power plant cooling tower discharge pipe should be no more than 100F. Past experience has indicated that the standard deviation of temperature is 2F. The...
Bentley Hamilton throws the business section of The New York Times onto the conference room table and watches as his associates jolt upright in their overstuffed chairs. Mr. Hamilton wants to make a...
Movie companies need to predict the gross receipts of individual movies once a movie has debuted. The data, shown in the next column and stored in Potter Movies , are the first weekend gross, the U....
The Westchester Chamber of Commerce periodically sponsors public service seminars and programs. Currently, promotional plans are under way for this years program. Advertising alternatives include...
One of the questions in the Pew Internet & American Life Project asked adults if they used the Internet, at least occasionally (Pew website, October 23, 2012). The results showed that 454 out of 478...
The workload in many areas of bank operations has the characteristics of a nonuniform distribution with respect to time of day. For example, at Chase Manhattan Bank in New York, the number of...
The northsouth highway system passing through Albany, New York, can accommodate the capacities shown. Can the highway system accommodate a northsouth flow of 10,000 vehicles perhour? Flow capacity:...