A manager has been using a certain technique to forecast demand for gallons of ice cream for the past six periods. Actual and forecasted amounts are shown below. Period Demand Forecast 1 85 75 2 96 100 3 102 105 4 85 87 5 74 68 6 69 65 If the errors are assumed to be normally distributed with CL=0, LCL= -4.5 and UCL= +4.5, in which period are the errors out of control?

The AOA network for a certain project is given in the graph below with the task durations (in days) in the table beneath it. The activities d1 and d2 are dummy activities. How many paths are there from start to finish? Activity a b c d e f g h Duration 6 15 10 5 3 1 9 8 Capture(1)(2).GIF

The AOA network for a certain project is given in the graph below with the task durations (in days) in the table beneath it. The activities d1 and d2 are dummy activities. What is the slack for activity g? Activity a b c d e f g h Duration 6 15 10 5 3 1 9 8 Capture(1)(2).GIF

The AOA network for a certain project is given in the graph below with the task durations (in days) in the table beneath it. The activities d1 and d2 are dummy activities. What activities are on the critical path? Activity a b c d e f g h Duration 6 15 10 5 3 1 9 8 Capture(1)(2).GIF

A location analysis has been narrowed down to three locations. The critical factors, their weights, and the ratings for each location are shown below: Factor Wt. Location A B C Labor Cost 0.4 75 55 100 Transportation Cost 0.2 85 45 70 Market Access 0.2 70 60 45 Raw Material Access 0.1 55 75 75 Utility Cost 0.1 95 65 35 If the selection criterion is to be composite score exceeding 80, management should choose

A manufacturing firm is considering two locations for a plant to produce a new product. The two locations have fixed and variable costs as follows: Location Fixed Costs Variable Costs Atlanta $65,000/year $18/unit Orlando  $120,000/year $14/unit What would the total annual costs be for the Orlando location with an annual output of 10,000 units?

A company is designing a product layout for a new product. It plans to use this production line eight hours a day in order to meet projected demand of 480 units per day. The tasks necessary to produce this product: Task Predecessor Time (seconds) w – 30 x w 30 u w 6 v u 12 z v 38 y x, z 30 If the company desires that output rate equal demand, what is the minimum number of workstations needed?

A location analysis has been narrowed down to three locations. The critical factors, their weights, and the ratings for each location are shown below: Factor Wt. Location A B C Labor Cost 0.4 75 55 100 Transportation Cost 0.2 85 45 70 Market Access 0.2 70 60 45 Raw Material Access 0.1 55 75 75 Utility Cost 0.1 95 65 35 What is the composite score for location A?

A former White House aide, who is now the owner of a Washington lobbying firm, is trying to decide whether to hire one, two, or three assistant lobbyists. He estimates that profits next year (in thousands of dollars) will vary with demand for his lobbying services as follows:                                        DemandDemandDemand  # of Assistants Low Medium High  One 620 100 620  Two -300 250 555  Three 0 0 615 If he uses the maximax criterion, how many assistants will he decide to hire? 

A former White House aide, who is now the owner of a Washington lobbying firm, is trying to decide whether to hire one, two, or three assistant lobbyists. He estimates that profits next year (in thousands of dollars) will vary with demand for his lobbying services as follows:                                           DemandDemandDemand # of Assistants Low Medium High One 620 100 620 Two -300 250 555 Three 0 0 615If he uses the maximin criterion, how many assistants will he decide to hire?