Consider several issues involved with the use of transportation and assignment models. Are transportation models useful for managing supply chains

Which of these things did galileo not do? a. stop publishing his scientific work after being convicted of heresy b. invent the concept of acceleration c. experiment with rolling balls down ramps of increasing steepness to test how objects would fall d. argue that earth moves around the sun e. make up a thought experiment that indicated that objects would fall at the same rate

Dr. dow jones wants to know whether a problem-based approach to teaching economics will result in higher academic performance than his traditional method. of the six sections of economics 101 at his university, dr. jones randomly assigns three sections to the traditional method and three sections to the problem-based method for unit 1 of the course. then all sections switch the instructional method for unit 2. he plans to compare the performance of the two groups of sections on their unit 1 and unit 2 exams. this study employs a design.

Data for hermann corporation are shown below: per unit percent of sales selling price $ 125 100 % variable expenses 80 64 contribution margin $ 45 36 % fixed expenses are $85,000 per month and the company is selling 2,700 units per month. required: 1-a. how much will net operating income increase (decrease) per month if the monthly advertising budget increases by $9,000 and monthly sales increase by $20,000? 1-b. should the advertising budget be increased?