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Q:
The sample mean is an estimate of μ and may be either higher or lower than μ depending on the sample.
Q:
In a cellular layout, additional floor space is required because machines are not very closely linked within a cell.
a. True
b. False
Q:
Indicate whether the statement is true or false.A Gallup study showed that there is no significant difference found in the productivities among workers who are allowed to personalize their workplaces and those who are not.a. Trueb. False
Q:
Data are considered to be right-skewed when the mean lies to the right of the median.
Q:
Which of the following is true of custom goods?
a. They are usually available as they are stocked in inventory.
b. They are produced on demand.
c. They are made in anticipation of customer demand.
d. They are made according to a fixed design.
Q:
You are given the following data: 23
34
11
40
25
47 Assuming that the data reflect the population of interest, the mean of the population is 36.00.
Q:
A _____ is a symbol used in process maps to denote an input or arrival into a process.
a. diamond
b. bold-dashed line
c. double-headed arrow
d. rectangle
Q:
You are given the following data: 23
34
11
40
25
47 Assuming that the data reflect a sample from a larger population, the sample mean is 30.00.
Q:
A manufacturer's average work-in-process inventory for Part #1234 of a particular car model is 1,250 parts. The workstation produces parts at the rate of 150 parts per day. What is the average time a part spends at the workstation?
a. More than 4 but less than or equal to 6 days
b. More than 6 but less than or equal to 8 days
c. More than 8 but less than or equal to 10 days
d. More than 10 days
Q:
You are given the following data: 23
34
11
40
25 If these data were considered to be a population and you computed the mean, you would get the same answer as if these data were considered to be a sample from a larger population.
Q:
The marketing manager for Voice-talk, a cell phone company, has taken a sample of 300 customers from the list of 4,356 total customers. The mean monthly bill for the last October based on the sample data is $45.62. The manager should realize that the mean bill for all 4,356 customers will actually be higher than $45.62.
Q:
Which of the following is true of flow shop processes?
a. They produce low volumes of custom goods and services.
b. They are large-scale, customized initiatives with wide variations in tasks.
c. They have high setup or changeover time.
d. They are organized around a fixed sequence of activities and process steps.
Q:
Which of the following is a difference between flow shops and job shops?
a. Unlike flow shops, job shops require little or no setup time.
b. Unlike flow shops, job shops are organized around a fixed sequence of process steps.
c. Unlike flow shops, job shops require frequent machine changeovers and delays.
d. Unlike flow shops, job shops produce many large-volume goods and services.
Q:
The symbol μ is used to represent the sample mean.
Q:
What is the implied service rate per service counter employee at an airport automobile rental counter if customer demand is 36 customers per hour, two service counter employees are on duty, and the labor utilization is 75 percent?
a. 18 customers per hour
b. 26 customers per hour
c. 20 customers per hour
d. 24 customers per hour
Q:
A statistic is a value that describes a population characteristic while a parameter is computed from a sample.
Q:
The Parks and Recreation manager for the city of Detroit recently submitted a report to the city council in which he indicated that a random sample of 500 park users indicated that the average number of visits per month was 4.56. This value should be viewed as a statistic by the city council.
Q:
_____ goods are configurations of standard parts, subassemblies, or services that can be selected by customers from a limited set.
a. Fixed
b. Custom
c. Option
d. Standard
Q:
The owner of a local gasoline station has kept track of the number of gallons of regular unleaded sold at his station every day since he purchased the station. This morning, he computed the mean number of gallons. This value would be considered a statistic.
Q:
In the context of process design, _____ is defined as the ability to produce the right types and amounts of products as customer demand or preferences change.
a. flexibility
b. outsourcing
c. throughput
d. utilization
Q:
An automobile emissions testing center has six inspectors and tests 50 vehicles per hour. Each inspector can inspect 12 vehicles per hour. How many inspectors would the center require to have a target utilization of 90 percent?
a. Two
b. Three
c. Seven
d. Five
Q:
A statistic is just another name for a parameter.
Q:
Management strategies to improve process designs of services focus on:
a. decreasing process costs by adding multiple approval requirements for all transactions.
b. decreasing process bottlenecks by adding non-value-added activities to a process.
c. increasing product and service quality by reducing defects and service upsets.
d. increasing agility by making service processes mechanistic and controlled.
Q:
If after graphing the data for a quantitative variable of interest, you notice that the distribution is highly skewed in the positive direction, the measure of central location that would likely provide the best assessment of the center would be the median.
Q:
Which of the following statements is true of a process map?
a. It distorts the boundaries of a process.
b. Including non-value-added activities in a process map is one of the important responsibilities of operations managers.
c. It documents how work either is or should be accomplished.
d. Adding multiple approval requirements for all transactions in a process map is a crucial part in the creation of the process map.
Q:
A common rule of thumb for determining how many classes to use when developing a frequency distribution with classes is:
A) between 5 and 20 classes.
B) no fewer than 6 classes.
C) equal to 0.25 times the number of data values.
D) at least 10 classes.
Q:
Non-value-added activities in a process design can be eliminated by:
a. using value stream mapping.
b. limiting the throughput of all processes.
c. adding multiple approval requirements for all transactions.
d. increasing process boundaries.
Q:
Frequency distributions can be formed from which of the following types of data?
A) Both discrete and continuous
B) Discrete only
C) Continuous only
D) Only qualitative data
Q:
A process _____ is the beginning or end of a process.
a. design
b. map
c. boundary
d. bottleneck
Q:
An accounting firm is capable of processing 20 income tax forms per day. The average number of forms in various stages of processing at any one time in the firm is 64. What is the average processing time per income tax form?
a. More than 2 but less than or equal to 3 days
b. More than 3 but less than or equal to 4 days
c. More than 4 but less than or equal to 5 days
d. More than 5 days
Q:
Recently a study of fans attending the New York Mets baseball games was conducted and 500 fans were surveyed. In forming a frequency distribution of the number of miles fans traveled from home to the stadium, it was found that 247 fans traveled between 0 and 5 miles. Based on this information what was the relative frequency for this class?
A) 0.247
B) 0.30
C) 0.494
D) Can't be determined without more information.
Q:
Which of the following statements is true of the service-positioning matrix (SPM)?
a. The horizontal axis of the SPM reflects the number of pathways built into a service system design by management.
b. The SPM mainly focuses on the alignment of process choice with the characteristics of the manufactured good.
c. The SPM helps management design a service system that best meets the technical and behavioral needs of customers.
d. The vertical axis of the SPM denotes the repeatability of a customer's service-encounter activity sequence.
Q:
The Maple Grove Hotel manager has collected data on the number of rooms occupied each evening for the past 700 nights. The fewest rooms occupied during that period was 11 and the most was the capacity, 430. Based on this information, which of the following would be reasonable class limits for the first class if the manager wishes to use 8 classes to develop a frequency distribution?
A) 0 to 40
B) 10 to < 65
C) 11 to 19
D) 0 to 52.38
Q:
A histogram is most commonly used to analyze which of the following?
A) Nominal level data
B) Quantitative data
C) Time-series data
D) Ordinal data
Q:
In a process design, a _____ is a specific unit of work required to create an output.
a. task
b. matrix
c. value chain
d. portfolio
Q:
In analyzing a single quantitative variable, you will generally choose to use a scatter diagram if the variable is measured over time and a histogram if the variable is cross-sectional.
Q:
A car rental company at a major airport on an average rents 70 percent of its fleet of 200 cars per day. The cars are rented for an average of 4 days. What is the average number of rentals processed per day?
a. More than 10 but less than or equal to 50 cars per day
b. More than 50 but less than or equal to 100 cars per day
c. More than 100 but less than or equal to 150 cars per day
d. More than 150 but less than or equal to 200 cars per day
Q:
_____ are large-scale, customized initiatives that consist of many smaller tasks and activities that must be coordinated and completed to finish on time and within budget.
a. Projects
b. Flow shops
c. Continuous flow processes
d. Assembly line processes
Q:
On a scatter diagram, the independent variable should be placed on the horizontal axis and the dependent variable should be placed on the vertical axis.
Q:
_____ are organized around particular types of general-purpose equipment that are flexible and capable of customizing work for individual customers.
a. Assembly line processes
b. Flow shop processes
c. Continuous flow processes
d. Job shop processes
Q:
Roscoe and Associates makes computer software for use in the telecommunications industry. Recently, managers at the company collected data for the year 2001 on three variables: total dollars spent on research and development, total sales dollars, and total employee salaries. To graphically present these three variables, the managers would be justified in using a line chart with all three variables plotted.
Q:
_____ goods are generally produced and delivered as one of a kind or in small quantities, and are designed to meet specific customers' specifications.
a. Fixed
b. Make-to-order
c. Make-to-stock
d. Standard
Q:
A scatter diagram can show whether a pair of variables has a strong or weak relationship, and also whether it is linear or curved.
Q:
Which of the following is true of reengineering?
a. Reengineering increases the number of non-value-added activities in a process design.
b. Reengineering decreases throughput by adding process bottlenecks.
c. The goal of reengineering is to achieve quantum leaps in performance.
d. The aim of reengineering is to focus on quality by adding multiple approval requirements for all transactions.
Q:
A scatter diagram can show that the relationship between two variables is actually nonlinear.
Q:
The average number of hotel rooms occupied per day during the month of March is 225. On average, each room is booked for 2.5 days. What is the average number of new bookings that occur per day?
a. More than 50 but less than or equal to 100 rooms per day
b. More than 150 but less than or equal to 300 rooms per day
c. More than 350 but less than or equal to 500 rooms per day
d. More than 500 rooms per day
Q:
If a scatter diagram shows points that are reasonably aligned and are sloping downward from left to right, this implies that there is a negative linear relationship between the two variables.
Q:
A wealth management company is able to process 300 customer statements per day. The average processing time per statement is two days. What is the average number of statements the company has in process at any time?
a. 150
b. 200
c. 450
d. 600
Q:
If two variables are graphed on the same line chart, two separate scales are always required.
Q:
Scatter diagrams can be used for either quantitative or qualitative data.
Q:
An automobile emissions testing center has three inspectors and tests 35 vehicles per hour. What should the service rate be in order to achieve a target utilization of 95 percent?
a. More than 1 but less than or equal to 5 vehicles per hour
b. More than 5 but less than or equal to 10 vehicles per hour
c. More than 10 but less than or equal to 15 vehicles per hour
d. More than 15 but less than or equal to 20 vehicles per hour
Q:
When developing a scatter diagram, it is appropriate to connect the points on the graph with straight lines or the lines can be omitted.
Q:
A study at State University involved an analysis of students' GPAs and the number of hours that they work at jobs off-campus. An appropriate graph to display the relationship between these two variables might be a scatter diagram.
Q:
The most appropriate match between type of product and type of process occurs as one moves away from the diagonal in the product-process matrix.a. Trueb. False
Q:
The J.B. Hanson Company is interested in analyzing the relationship between end-of-the-week inventory levels and sales for the same week. The graph that most likely would be used to show this relationship is a histogram.
Q:
Utilization is the average time taken to complete one cycle of a process.
a. True
b. False
Q:
In a process design, an activity refers to a group of tasks needed to create and deliver an intermediate or final output.
a. True
b. False
Q:
To show the relationship between amount of rainfall and the number of car accidents, the best type of graph to use is a scatter diagram.
Q:
Continuous flow processes are used to create custom goods and services.
a. True
b. False
Q:
Sawyer & Company is a law firm in Dallas, Texas. Recently, the administrative manager prepared a report for the managing partners that showed the number of court cases handled by the firm monthly over the past three years. One of the objectives of graphing these data might have been to identify a trend in the number of court cases.
Q:
Indicate whether the statement is true or false.All processes and functional areas participate in the reengineering efforts of a firm.a. Trueb. False
Q:
White & Checker is releasing a new power drill that requires the manufacturing of a new part. They are considering whether they should manufacture the part in-house or outsource it from a supplier. The demand forecast is 1,355 units. They calculate the break-even quantity as 1,750 parts. What decision should White & Checker make?
a. The product should not be released, as the demand is not high enough.
b. A percentage of the product should be manufactured in-house, and the rest should be outsourced.
c. The part should be outsourced.
d. The part should be manufactured in-house.
Q:
A major insurance company believes that for drivers between 16 years of age and 60 years of age, the number of accidents per year tends to decrease as age increases. If this is the case, a scatter diagram should show a negative relationship between the two variables.
Q:
Which of the following is considered economic factors in location decisions?
a. Community attitudes
b. Operating costs
c. Transportation services
d. Climatic conditions
Q:
A scatter diagram is a line graph without the points connected by a line.
Q:
Identify a true statement about responsive supply chains.
a. They use only a few, large distribution centers to generate economies of scale.
b. They use optimization models that minimize costs of routing products from factory through distribution centers to retail stores and customers.
c. They are designed for efficiency and low cost by minimizing inventory and maximizing efficiencies in process flow.
d. They are supported by information technology that provides real-time information to managers across the supply chain.
Q:
A university recently collected data for a sample of 200 business majors. One variable collected was the number of credits left to be taken before graduation. This variable could effectively be displayed using a line chart.
Q:
The center-of-gravity method is often used to locate _____.
a. availability of raw materials
b. demand markets
c. site locations
d. service facilities
Q:
In a scatter plot the points should always be connected with a line.
Q:
In location decision process, which of the following factors are considered in local site location decision?
a. International monetary policy
b. Time zones
c. Sustainability issues
d. Foreign languages
Q:
Which of the following is an advantage of pull systems?
a. They are efficient even when schedules are missed.
b. They minimize inventory and production costs.
c. They forecast changes in customer demand.
d. They reduce transportation costs.
Q:
In preparing a line chart, the horizontal axis shows time and the vertical axis shows the value of the variable of interest.
Q:
If the Viking Sales Company plans to display the sales for each of its six major products for the year 2001, an effective chart to do this would be a histogram.
Q:
Which of the following statements is true of Inditex's supply chain?
a. It can deliver most goods in 24 hours in Europe and the United States.
b. It can be viewed as a push system.
c. It is efficient rather than responsive.
d. It avoids proximity sourcing as its products are expensive.
Q:
A stem and leaf diagram is more appropriate for graphically displaying a joint frequency distribution than is a histogram since the stems can be used to display one variable while the leaves can be used to display the second variable.
Q:
One advantage of a distributive system, such as blockchain technology, is that:
a. accountability among value chain participants are dependent on a single supplier.
b. transactions cannot be traced back to the original source.
c. control of information is in the hands of one individual, rather than multiple people.
d. no single individual or organization has total control of the information.
Q:
In constructing a stem and leaf diagram, there is a hard-and-fast rule for defining the stem and the leaves.
Q:
Rues and West Inc. is an automobile manufacturing firm. It produces and assembles all the parts of automobiles in its factory and, later, ships the finished products to its storehouses. The managers at the storehouses distribute the goods to wholesalers. Customers then buy the products from the wholesalers. In this scenario, the pushpull boundary for Rues and West Inc. is at the _____.
a. factory
b. wholesalers
c. storehouses
d. assembly section
Q:
A difference between efficient supply chains and responsive supply chains is that responsive supply chains _____.
a. focus on flexibility and responsive service
b. focus on maximizing efficiencies in process flow
c. seek to balance capacity and demand, resulting in low levels of inventory
d. seek to minimize cost of routing products from factory to customers
Q:
A study was recently conducted in which makers of toothpaste tracked sales for the month at different stores in a market area. The variable of interest was the number of units sold. The numbers ranged from 1,200 to 22,700. In this case, the stems in a stem and leaf diagram might be values such as 1 and 22 while the leaves would be 200 and 700.