Practical Management Science
6th Edition
ISBN: 9781337406659
Author: WINSTON, Wayne L.
Publisher: Cengage,
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- The data below represents the quarterly changes in demand for a product over the next 3 months. Quarter Demand Quarter Demand Quarter Demand 1 120 5 164 9. 180 158 155 10 199 3 164 7 158 11 172 4 160 8. 163 12 170 Apply the following forecasting techniques of the data to estimate the demand in period 13: a. Regression; b. Moving average with base m=3; c. Exponential smoothing with a = 0.1.arrow_forwardForecast deliveries for one of Cadbury Schweppes' subsidiaries for period 10 using the exponential smoothing with trend adjustment method. Let the beginning trend value be 4 and the initial prediction be 200, and set alpha and beta to 0.4 and 0.2, respectively. Period 01 = Actual Demand 200 Period 02 = Actual Demand 212 Period 03 = Actual Demand 214 Period 04 = Actual Demand 222 Period 05 = Actual Demand 236 Period 06 = Actual Demand 221 Period 07 = Actual Demand 240 Period 08 = Actual Demand 244 Period 09 = Actual Demand 250 Period 10 = Actual Demand 266arrow_forwardBelow is a table containing data on product demand for the most recent five months along with the forecasts that had been made for those 5 previous months. Use the exponential smoothing method to forecast the number of sales to expect next month. Use the following value of alpha: 0.2. Month Demand Forecast 1 308 349.2 388 340.9 3 344 350.3 4 400 349.1 341 359.3arrow_forward
- The manager of Redline Trucking believes that the demand for tires used on his trucks is closely related to the number of miles driven. He has collected the following data covering the past four months. Month 1 2 3 4 Tires Used 100 150 120 80 Miles Driven 15,000 20,000 17,000 11,000 Write an algebraic equation forecasting the demand for tires. Indicate and explain the independenet and dependant variables and the parameters used in your equation.arrow_forwardThe actual number of patients at Moncton Medical Clinic for the first six weeks of this year follows: Week 1 2 3 4 5 6 Actual No. of Patients 65 68 76 59 66 73 Clinic administrator Marc Schniederjans wants you to forecast patient numbers at the clinic for week 7 by using this data. You decide to use a weighted moving average method to find this forecast. Your method uses four actual demand levels, with weights of 0.333 on the present period, 0.250 one period ago, 0.250 two periods ago, and 0.167 three periods ago. a) What is the value of your forecast? The value of the forecast is patients (round your response to two decimal places).arrow_forwardActual demand for a product for the past three months was: Three months ago 400 units Two months ago 350 units Last month 325 units Using a simple three-month moving average, make a forecast for this month. Note: Round your answer to the nearest whole number. If 300 units were actually demanded this month, what would your forecast be for next month, again using a three-month moving average? Note: Round your answer to the nearest whole number. Using simple exponential smoothing, what would your forecast be for this month if the exponentially smoothed forecast for three months ago was 450 units and the smoothing constant was 0.20? Note: Round your answer to the nearest whole number.arrow_forward
- XYZ Chips Inc. (XCI) produces Centrino-type chips. The market has been inclining with ups and downs during the last eight years because of its new chips. The demands over the last 12 periods were 95, 115, 130, 122, 105, 125, 140, 134, 125, 142, 160, and 153 thousand pieces. Forecast the demand for the next 4 periods (periods 13 to 16) using an appropriate forecasting technique.arrow_forwardBelow is a table containing data on product demand for the most recent five months along with the forecasts that had been made for those 5 previous months. Use the 3-period simple moving average method to forecast the number of sales to expect next month. Month Demand Forecast 1 308 341 388 343.3 3 344 364.7 4 400 346.7 341 377.3arrow_forwardThe following table shows the actual demand observed over the last 11 years: Year 1 2 3 4 5 6 7 8 9 10 11 Demand 8 8 4 9 12 7 11 14 9 13 8 Part 2 Using exponential smoothing with α = 0.50 and a forecast for year 1 of 7.0, provide the forecast from periods 2 through 12 (round your responses to one decimal place). Year 1 2 3 4 5 6 7 8 9 10 11 12 Forecast 7.0 enter your response here enter your response here enter your response here enter your response here enter your response here enter your response here enter your response here enter your response here enter your response here enter your response here enter your response herearrow_forward
- Solve b partsarrow_forwardSunrise is planning its purchases of ingredients for bread production. If bread demand had been forecast for last week at 22k loaves & only 21k loaves were actually demanded, what would Sunrise’s forecast be for this week using exponential smoothing with α = 0.10?arrow_forwardSales of tablet computers at Marika Gonzalez's electronics store in Washington, D.C., over the past 10 weeks are shown in the table below: Week Demand 1 20 2 20 Week 1 Demand 20 Forecast 20.0 3 29 4 37 4 37 5 24 2 3 29 20 6 30 7 8 37 24 a) The forecast for weeks 2 through 10 using exponential smoothing with a = 0.55 and a week 1 initial forecast of 20.0 are (round your responses to two decimal places): 5 6 30 24 7 37 9 24 8 24 10 28 9 24 10 28arrow_forward
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