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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?
use exponential smoothing with a smoothing constant of 0.3 to forecast the registrations at the seminar given in problem 4.10 to begin the procedure, assume that the forecast for year 1 was 5.000 people signing up. what is the MAD?
Several new employees, mostly women also minorities were hired to remedy the lack of diversity in the workplace. Due to financial difficulties within the organization, each division manager has been instructed to decrease his or her employee payro..
At a carnival, the carousel ride has a problem with keeping the mechanical horses working. Repair technicians can be hired at a rate of $30 per hour, while working as only one team. This means the technician will work alone. If two or more techs are ..
Provide a brief summary of the facts and discuss the standards that were used in determining that a breach had occurred. Also discuss whether you agree or disagree with the findings.
Identify how production processes are organized in a typical manufacturing organization. What are some specific examples?
Three hundred and sixty boxes are to be shipped, and each box has a price of $146. Which shipping alternative would you recommend?
Does GINA promote actuarial equity or social equity in health insurance underwriting. Explain using definition of type of underwriting supported by GINA.
Determine which elements of administrative law will be most relevant to the upcoming initiative (s) and what the impact of those laws will be.
As a beginning songwriter and performer, you are convinced that a certain model of guitar is what you need to turn the musical world on its ear
It normally relies on departmental forecast and preregistration records to determine how many copies of a text are needed. Preregistration show 90 operations management students enrolled.
Discuss chaos in health care systems today. In addition, discuss the role of insurance and billing, HMOs, varying drug costs across borders
Susan's Sub Shop makes customer submarine sandwiches to order. There are 4 workers. What is the current maximum output of Susan's Sub Shop in number of units per hour?
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