
Concept explainers
The method for rating teams in Example 7.8 is based on actual and predicted point spreads. This method can be biased if some teams run up the score in a few games. An alternative possibility is to base the ratings only on wins and losses. For each game, you observe whether the home team wins. Then from the proposed ratings, you predict whether the home team will win. (You predict the home team will win if the home team advantage plus the home team’s rating is greater than the visitor team’s rating.) You want the ratings such that the number of predictions that match the actual outcomes is maximized. Try modeling this. Do you run into difficulties? (Remember that Solver doesn’t like IF functions.)
EXAMPLE 7.8 RATING NFL TEAMS9
We obtained the results of the 256 regular-season NFL games from the 2015 season (the 2016 season was still ongoing as we wrote this) and entered the data into a spreadsheet, shown at the bottom of Figure 7.38. See the file NFL Ratings Finished.xlsx. (Some of these results are hidden in Figure 7.38 to conserve space.) The teams are indexed 1 to 32, as shown at the top of the sheet. For example, team 1 is Arizona, team 2 is Atlanta, and so on. The first game entered (row 6) is team 19 New England versus team 25 Pittsburgh, played at New England. New England won the game by a score of 28 to 21, and the point spread (home team score minus visitor team score) is calculated in column J. A positive point spread in column J means that the home team won; a negative point spread indicates that the visiting team won. The goal is to determine a set of ratings for the 32 NFL teams that most accurately predicts the actual outcomes of the games played.

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Chapter 7 Solutions
Practical Management Science
- For dietary management in a nursing home. As detailed as possible.arrow_forwardA small furniture manufacturer produces tables and chairs. Each product must go through three stages of the manufacturing process – assembly, finishing, and inspection. Each table requires 3 hours of assembly, 2 hours of finishing, and 1 hour of inspection. The profit per table is $120 while the profit per chair is $80. Currently, each week there are 200 hours of assembly time available, 180 hours of finishing time, and 40 hours of inspection time. Linear programming is to be used to develop a production schedule. Define the variables as follows: T = number of tables produced each week C= number of chairs produced each week According to the above information, what would the objective function be? (a) Maximize T+C (b) Maximize 120T + 80C (c) Maximize 200T+200C (d) Minimize 6T+5C (e) none of the above According to the information provided in Question 17, which of the following would be a necessary constraint in the problem? (a) T+C ≤ 40 (b) T+C ≤ 200 (c) T+C ≤ 180 (d) 120T+80C ≥ 1000…arrow_forwardAs much detail as possible. Dietary Management- Nursing Home Don't add any fill-in-the-blanksarrow_forward
- Menu Planning Instructions Use the following questions and points as a guide to completing this assignment. The report should be typed. Give a copy to the facility preceptor. Submit a copy in your Foodservice System Management weekly submission. 1. Are there any federal regulations and state statutes or rules with which they must comply? Ask preceptor about regulations that could prescribe a certain amount of food that must be kept on hand for emergencies, etc. Is the facility accredited by any agency such as Joint Commission? 2. Describe the kind of menu the facility uses (may include standard select menu, menu specific to station, non-select, select, room service, etc.) 3. What type of foodservice does the facility have? This could be various stations to choose from, self-serve, 4. conventional, cook-chill, assembly-serve, etc. Are there things about the facility or system that place a constraint on the menu to be served? Consider how patients/guests are served (e.g. do they serve…arrow_forwardWork with the chef and/or production manager to identify a menu item (or potential menu item) for which a standardized recipe is needed. Record the recipe with which you started and expand it to meet the number of servings required by the facility. Develop an evaluation rubric. Conduct an evaluation of the product. There should be three or more people evaluating the product for quality. Write a brief report of this activity • Product chosen and the reason why it was selected When and where the facility could use the product The standardized recipe sheet or card 。 o Use the facility's format or Design one of your own using a form of your choice; be sure to include the required elements • • Recipe title Yield and portion size Cooking time and temperature Ingredients and quantities Specify AP or EP Procedures (direction)arrow_forwardASSIGNMENT: Inventory, Answer the following questions 1. How does the facility survey inventory? 2. Is there a perpetual system in place? 3. How often do they do a physical inventory? 4. Participate in taking inventory. 5. Which type of stock system does the facility use? A. Minimum stock- includes a safety factor for replenishing stock B. Maximum stock- equal to a safety stock plus estimated usage (past usage and forecasts) C. Mini-max-stock allowed to deplete to a safety level before a new order is submitted to bring up inventory up to max again D. Par stock-stock brought up to the par level each time an order is placed regardless of the amount on hand at the time of order E. Other-(describe) Choose an appropriate product and determine how much of an item should be ordered. Remember the formula is: Demand during lead time + safety stock = amount to order Cost out an inventory according to data supplied. Remember that to do this, you will need to take an inventory, and will need to…arrow_forward
- Human Relations, Systems, and Organization Assignments ORGANIZATION: Review the organization chart for the facility • Draw an organization chart for the department. • . Identify and explain the relationships of different units in the organization and their importance to maintain the food service department's mission. Include a copy in your weekly submission. There is a feature in PowerPoint for doing this should you want to use it. JOB ORGANIZATION: ⚫ A job description is a broad, general, and written statement for a specific job, based on the findings of a job analysis. It generally includes duties, purpose, responsibilities, scope, and working conditions of a job along with the job's title, and the name or designation of the person to whom the employee reports. Job description usually forms the basis of job specification. • Work with your preceptor or supervisor to identify a position for which you will write a job description. Include a copy of the job description you write in your…arrow_forwardASSIGNMENT: Production Sheet Watch at least 3 workers prepare foods. Write down what they do and the amount of time it takes for them to complete the task. Calculate the production cost. Example: Food Item: Green Beans Time Worker #1 Worker #2 Worker #3 Start End Time (Hours) Time Time Activity Activity Activity (Hours) (Hours) 11:45 am 12:01 pm 0.27 Steam and 0.05 Microwave blenderize pureed frozen green green beans beans 16.25 Total Production Time 3 minutes minutes Hourly Wage $16.07 $12.28 24% Benefits *** $3.86 $2.95 Labor Costs $5.37 $0.76 *** Check with facility to see Benefit %arrow_forwardMenu Planning and Quality Monitoring Rotation site: Hospital/Commercial Foodservice Rotation Objectives: Menu development (this will be your Theme Meal) 1. Develop a modified menu (vegetarian, vegan, gluten-free, etc.) that is appropriate in texture, color, flavor, eye appeal, temperature, and methods of preparation. 2. Develop a menu that takes into consideration food preferences due to clients' ethnicity and age group. 3. Develop menus that fulfill the nutritional needs of the target population. 4. Develop a modified menu that maintains consistency with a regular menu. 5. Demonstrate knowledge of operational constraints and limitations when designing menus 6. Identify appropriate type and amounts of foods for an emergency plan. ACTIVITY: Quality improvement monitoring 1. Participates in rounds to get feedback from clients on Theme Meal menu. 2. Takes corrective actions if necessary according to results of the quality measures 3. Completes one or more critical incident reports for the…arrow_forward
- Practical Management ScienceOperations ManagementISBN:9781337406659Author:WINSTON, Wayne L.Publisher:Cengage,
