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The Cardinal Electronics Company must project the sales of cellular phones for the next year (called year 2). The number of cell phones sold by Cardinal Electronics in each of the past 6 months (July of year 1 through December of year 1) is shown below. Month Number of Cellular Phones Sold July 183 August 215 September 294 October 333 November 410 December 438 a. Forecast the number of cellular phones demanded in January of year 2 using a rolling (i.e. updated at end of each month when new demand data becomes available) 4-month linear regression model. For example, forecasts generated at the end of October are made by fitting a linear regression to the demands in months July through October and forecasts generated at the end of December are made by fitting a linear regression to the demands in months September through December. Forecast the number of cellular phones demanded in July of year 2. Calculate the MAD, MSE, and MAPE for a rolling 4-month linear regression model. b. Using Double Exponential Smoothing (DES) with ? = 0.15 and ?= 0.10 (i.e. assume the data has a linear trend pattern), forecast the number of cellular phones demanded in January of year 2. Forecast the number of cellular phones demanded in July of year 2. Calculate the MAD, MSE, and MAPE for your double exponential smoothing model. c. Based on the measures of forecast accuracy you calculated for the part a) linear regression model and the part b) DES (0.15, 0.10) model, which model is a better fit for this data?
A large law firm uses an average of 37 boxes of copier paper a day. The firm operates 256 days a year. Storage and handling costs for the paper are $31 a year per box.
Meritor, a company that makes muffler assemblies for the automotive industry, is committed to the use of kanban to pull material through its manufacturing cells.
Illustrate what factors are organizations using to render non-traditional inducements also seem as family friendly organization.
Find out in your organization an aspect of the operational process which could benefit from use of one or more of the given techniques: business or predictive analytics, dashboards, decision support systems and supply chain management.
Utilizing the perspective of the effects of organizational culture, explain the impact of The Toyota Way. Illustrate what challenges does Toyota face as it attempts to maintain The Toyota Way while pursuing vigorous global expansion.
"Metal window boxes are manufactured in 2 process steps: stamping and assembly. Each window box is made of 3 pieces: base A and 2 sides Bs. Illustrate what's capacity at stamping.
Illustrate what is the probability which the supply of circuit boards will be exhausted before an order is received if boards were ordered when the amount drops to 625 boards.
Think of how you will create value by making it more advantageous to employ or contract with your technology business. Ideally, you provide more value than just being inexpensive.
your information mart and 5 indicating that the dimension offers the lowest value and does not desire to be in your information mart. Which variables would you choose if your information mart could only contain 10 dimensions.
describe whether you relied on external or internal sources of information to help you make every decision also whether you think you were more linear or nonlinear in describe how you processed which information.
Consider prices of $6, $6, $8. Which price alternative will maximize total revenue? What ae the values for demand and revenue at this price?
One of the potential problems mentioned inthis chapter with gathering information requirments by observing potential system usuers is that people may change their behavior when observed.
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