ISDS 3115 END OF COURSE ANSWERS AND
QUESTIONS SET A+
✔✔What is the reasoning behind setting the upper and lower control limits
plus or minus±3sigma Subscript x overbarσx
from the mean? - ✔✔We know that 99.73% of natural variation is contained within
plus or minus±3sigma Subscript x overbarσx,
and thus any data point outside of the limits is likely due to assignable variation
✔✔What does it mean for a process to be "capable"? - ✔✔The process output is
capable of meeting set specifications.
✔✔The reason fast food restaurants often are found in close proximity to each other is:
- ✔✔location clustering near high traffic flows.
✔✔What is a false statement regarding the center-of-gravity method - ✔✔It is designed
to minimize the maximum possible travel distance to any of the locations.
✔✔What is true regarding the center-of-gravity method - ✔✔- The optimal x- and
y-coordinates
are calculated separately.
- The optimal solution is unconstrained, so it could suggest a location in the middle of a
body of water.
- The origin of the coordinate system and the scale used are arbitrary, just as long as
the relative distances are correctly represented.
- The weights used are the quantity of goods moved to or from each location.
✔✔The center-of-gravity method is used primarily to determine what type of locations? -
✔✔Distribution center locations
✔✔Geographic information systems can assist the location decision by: - ✔✔combining
geography with demographic analysis.
, ✔✔Which of the statements below best describes retail layout? - ✔✔allocates shelf
space and responds to customer behavior
✔✔The main goal of retail layout is: - ✔✔maximizing profitability per square foot of floor
space.
✔✔The major problem addressed by the warehouse layout strategy is: - ✔✔addressing
trade-offs between space and material handling.
✔✔The major problem addressed by the process-oriented layout strategy is: -
✔✔minimizing difficulties caused by material flow varying with each product.
✔✔The assumptions necessary for a successful product-oriented layout include all
EXCEPT which of the following? - ✔✔volatile product demand
✔✔T/F? Slack is the amount of time an activity can be delayed without delaying the
entire project. - ✔✔True
✔✔What is PERT - ✔✔Program Evaluation and Review Technique
✔✔What is PERT for - ✔✔simplify planning and schedule of large and complex projects
- Only critical activities contribute to the project variance
✔✔the difference between AON and AOA networks is that: - ✔✔- AOA networks
sometimes require dummy activities
- Nodes designate activities in AON, while arrows designate activities in AOA
- Both are acceptable in practice; However, Microsoft project uses AON
- Nodes consume no resources or time in AOA networks
✔✔T/F? The sales force composite forecasting method relies on salespersons'
estimates of expected sales. - ✔✔True
✔✔One use of short-range forecasts is to determine: - ✔✔Job assignments
✔✔Increasing the number of periods in a moving average will accomplish greater
smoothing, but at the expense of: - ✔✔Sensitivity to real changes in the data
✔✔A fundamental distinction between trend projection and linear regression is that: -
✔✔In trend projection the independent variable is time;
In linear regression the independent variable need not be time, but can be any variable
with explanatory power
QUESTIONS SET A+
✔✔What is the reasoning behind setting the upper and lower control limits
plus or minus±3sigma Subscript x overbarσx
from the mean? - ✔✔We know that 99.73% of natural variation is contained within
plus or minus±3sigma Subscript x overbarσx,
and thus any data point outside of the limits is likely due to assignable variation
✔✔What does it mean for a process to be "capable"? - ✔✔The process output is
capable of meeting set specifications.
✔✔The reason fast food restaurants often are found in close proximity to each other is:
- ✔✔location clustering near high traffic flows.
✔✔What is a false statement regarding the center-of-gravity method - ✔✔It is designed
to minimize the maximum possible travel distance to any of the locations.
✔✔What is true regarding the center-of-gravity method - ✔✔- The optimal x- and
y-coordinates
are calculated separately.
- The optimal solution is unconstrained, so it could suggest a location in the middle of a
body of water.
- The origin of the coordinate system and the scale used are arbitrary, just as long as
the relative distances are correctly represented.
- The weights used are the quantity of goods moved to or from each location.
✔✔The center-of-gravity method is used primarily to determine what type of locations? -
✔✔Distribution center locations
✔✔Geographic information systems can assist the location decision by: - ✔✔combining
geography with demographic analysis.
, ✔✔Which of the statements below best describes retail layout? - ✔✔allocates shelf
space and responds to customer behavior
✔✔The main goal of retail layout is: - ✔✔maximizing profitability per square foot of floor
space.
✔✔The major problem addressed by the warehouse layout strategy is: - ✔✔addressing
trade-offs between space and material handling.
✔✔The major problem addressed by the process-oriented layout strategy is: -
✔✔minimizing difficulties caused by material flow varying with each product.
✔✔The assumptions necessary for a successful product-oriented layout include all
EXCEPT which of the following? - ✔✔volatile product demand
✔✔T/F? Slack is the amount of time an activity can be delayed without delaying the
entire project. - ✔✔True
✔✔What is PERT - ✔✔Program Evaluation and Review Technique
✔✔What is PERT for - ✔✔simplify planning and schedule of large and complex projects
- Only critical activities contribute to the project variance
✔✔the difference between AON and AOA networks is that: - ✔✔- AOA networks
sometimes require dummy activities
- Nodes designate activities in AON, while arrows designate activities in AOA
- Both are acceptable in practice; However, Microsoft project uses AON
- Nodes consume no resources or time in AOA networks
✔✔T/F? The sales force composite forecasting method relies on salespersons'
estimates of expected sales. - ✔✔True
✔✔One use of short-range forecasts is to determine: - ✔✔Job assignments
✔✔Increasing the number of periods in a moving average will accomplish greater
smoothing, but at the expense of: - ✔✔Sensitivity to real changes in the data
✔✔A fundamental distinction between trend projection and linear regression is that: -
✔✔In trend projection the independent variable is time;
In linear regression the independent variable need not be time, but can be any variable
with explanatory power
