(1) If the manager is able to obtain additional 50 minutes of machine time through better scheduling. What is the impact of this change on the objective function value?

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(2) The manager noticed that a new product, super-chip, is now available at its competitors stores. Based on his estimate, super-chips would be able to bring in a profit of $7.00 per bag, requiring 4 pounds of barks, 7 minutes of machine time, and 4 labour hours. Assume that the total demand for all products remains at 150 bags. What is the impact on the optimal solution and objective function value if the store manager decides to introduce this new product?

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(3) The manager now realizes that he has limited storage space for the product: he will not be able to stock up anything beyond 160 bags for the total of all products. What is the impact on the optimal solution?

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(4) What is the impact on the optimal solution and the objective function value if the unit profit contributions for nuggets and mini-nuggets both increase by 10%?

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(5) If the availability of Barks and machine time has been changed to 610 pounds and 620 minutes, respectively, what is the impact on the objective function value?

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