PRACTICAL MGT. SCIENCE (LL)-W/MINDTAP
6th Edition
ISBN: 9781337610278
Author: WINSTON
Publisher: CENGAGE L
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 13.7, Problem 27P
The file P13_27.xlsx contains yearly data on the proportion of Americans under the age of 18 living below the poverty level.
- a. Create a time series chart of the data. Based on what you see, which of the exponential smoothing models do you think will provide the best
forecasting model? Why? - b. Use simple exponential smoothing to forecast these data, using a smoothing constant of 0.1.
- c. Repeat part b, but search for the smoothing constant that makes RMSE as small as possible. Create a chart of the series with the forecasts superimposed from this optimal smoothing constant. Does it make much of an improvement over the model in part b?
- d. Write a short report to summarize your results. Considering the chart in part c, would you say the forecasts are “good”?
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Help with question?
What are some good examples of bullet points on a resume for a Christian Elementary School?
What is an example of a cover letter for a Christian School Long-Term Substitute Teaching position?
Chapter 13 Solutions
PRACTICAL MGT. SCIENCE (LL)-W/MINDTAP
Ch. 13.3 - The file P13_01.xlsx contains the monthly number...Ch. 13.3 - The file P13_02.xlsx contains five years of...Ch. 13.3 - The file P13_03.xlsx contains monthly data on...Ch. 13.3 - The file P13_04.xlsx lists the monthly sales for a...Ch. 13.3 - Management of a home appliance store wants to...Ch. 13.3 - Do the sales prices of houses in a given community...Ch. 13.3 - Prob. 7PCh. 13.3 - The management of a technology company is trying...Ch. 13.3 - Prob. 9PCh. 13.3 - Sometimes curvature in a scatterplot can be fit...
Ch. 13.4 - Prob. 12PCh. 13.4 - A trucking company wants to predict the yearly...Ch. 13.4 - An antique collector believes that the price...Ch. 13.4 - Stock market analysts are continually looking for...Ch. 13.4 - Suppose that a regional express delivery service...Ch. 13.4 - The owner of a restaurant in Bloomington, Indiana,...Ch. 13.6 - The file P13_19.xlsx contains the weekly sales of...Ch. 13.6 - The file P13_20.xlsx contains the monthly sales of...Ch. 13.6 - The file P13_21.xlsx contains the weekly sales of...Ch. 13.6 - The file P13_22.xlsx contains total monthly U.S....Ch. 13.7 - You have been assigned to forecast the number of...Ch. 13.7 - Simple exponential smoothing with = 0.3 is being...Ch. 13.7 - The file P13_25.xlsx contains the quarterly...Ch. 13.7 - The file P13_26.xlsx contains the monthly number...Ch. 13.7 - The file P13_27.xlsx contains yearly data on the...Ch. 13.7 - The file P13_28.xlsx contains monthly retail sales...Ch. 13.7 - The file P13_29.xlsx contains monthly time series...Ch. 13.7 - A version of simple exponential smoothing can be...Ch. 13 - Prob. 31PCh. 13 - Prob. 32PCh. 13 - Management of a home appliance store would like to...Ch. 13 - A small computer chip manufacturer wants to...Ch. 13 - The file P13_35.xlsx contains the amount of money...Ch. 13 - Prob. 36PCh. 13 - Prob. 37PCh. 13 - Prob. 39PCh. 13 - The Baker Company wants to develop a budget to...Ch. 13 - Prob. 41PCh. 13 - The file P13_42.xlsx contains monthly data on...Ch. 13 - Prob. 43PCh. 13 - Prob. 44PCh. 13 - Prob. 45PCh. 13 - Prob. 46PCh. 13 - Prob. 49P
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, operations-management and related others by exploring similar questions and additional content below.Similar questions
- The supply chain is a conventional notion, but organizations are only really interested in making products that they can sell to customers. Provided they have reliable supplies of materials and reasonable transport for finished products, logistics is irrelevant. Do you think this is true? If yes, explain, and if no, clearly explain as well.arrow_forwardworking as a program operations managerarrow_forward12 X1, X230 1 x =0x2 write the Following linear Programming model by 1- general Form Canonical Forms Canonical formY 2- Standard Form Max Z=35X+ 4 X 2 +6 X3 ST. X+2X2-5x3 = 40 3X, + 6X2 + 7x 3 = 30 7x, +lox2 x3 = 50 X3 X 2 X 3 <0arrow_forward
- a/ a Minimum cost assign each worker for one job at Jobs J1 12 33 WI 2 4 6 W2 5 W3 5 33 6 7arrow_forwardوبة واضافة هذه القيمة الى القيم Ex: Assign each job for each worker at minimum total Cost عمل لكل عامل وبأقل كلفة ممكنة obs الأعمال Workors العمال J1 J2 J3 J4 W₁ 15 13 14 12 W2 11 12 15 13 W3 13 12 10 11 W4 15 17 14 16arrow_forwardThe average completion time (flow time) for the sequence developed using the FCFS rule = 11.75 days (round your response to two decimal places). The percentage utilization for the sequence developed using the FCFS rule = 42.55 % (enter your response as a percentage rounded to two decimal places). b) Using the SPT (shortest processing time) decision rule for sequencing the jobs, the order is (to resolve a tie, use the order in which the jobs were received): An Alabama lumberyard has four jobs on order, as shown in the following table. Today is day 205 on the yard's schedule. In what sequence would the jobs be ranked according to the decision rules on the left: Job Due Date A 212 B 209 C 208 D 210 Duration (days) 6 3 3 8 Sequence 1 Job B 2 3 4 A D The average tardiness (job lateness) for the sequence developed using the SPT rule = 5.00 days (round your response to two decimal places). The average completion time (flow time) for the sequence developed using the SPT rule = 10.25 days…arrow_forward
- With the aid of examples, fully discuss any five (5) political tactics used in organisations.arrow_forwarda. With the aid of examples, define discrimination. b. Fully discuss any four (4) types of discrimination in the workplacearrow_forwardRead the Following Extract and Answer the Questions that Follows:The word politics has a somewhat negative connotation. It suggests that someone is attempting touse means or to gain ends that are not sanctioned by the organisation. Political behaviour, as we’vedefined it is quite neutral. Similarly, power is not inherently negative. Whether a person viewspower and politics as unsavoury topics depends on several considerations, most important perhapsbeing where the individual stands on a specific issue in each situation. Nonetheless, most managersare reluctant to admit to political character of their own work settings.Discuss any Five (5) Political tactics you know.arrow_forward
- Describe current features of Cigna Accredo pharmacy own appraisal forms and compare the system used against the textbook’s description of desirable features of appraisal forms. What improvements would you recommend and why?arrow_forwardProvide a recommendation of a combination of different methods of performance data that could be used to arrive at an overall score for each person being rated in cigna Accredo pharmacy. Explain the comprehensive system you have recommended and why you have chosen this combination of tools. Support your answer with research.arrow_forwardAlready got wrong answer Plz Don't use chatgptarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Practical Management ScienceOperations ManagementISBN:9781337406659Author:WINSTON, Wayne L.Publisher:Cengage,
Practical Management Science
Operations Management
ISBN:9781337406659
Author:WINSTON, Wayne L.
Publisher:Cengage,
Single Exponential Smoothing & Weighted Moving Average Time Series Forecasting; Author: Matt Macarty;https://www.youtube.com/watch?v=IjETktmL4Kg;License: Standard YouTube License, CC-BY
Introduction to Forecasting - with Examples; Author: Dr. Bharatendra Rai;https://www.youtube.com/watch?v=98K7AG32qv8;License: Standard Youtube License