Which of the following is incorrect?
a. A global optimum is a local optimum in a nonlinear optimization problem.
b. A local maximum is a global maximum in a concave nonlinear optimization problem.
c. A global minimum is a local minimum in a convex nonlinear optimization problem.
d. A local optimum is a global optimum in a nonlinear optimization problem.
Question 2
In the past, 35 of the students at ABC University were in the Business College, 35 of the students were in the Liberal Arts College, and 30 of the students were in the Education College. To see whether the proportions have changed, a random sample of 300 students from ABC University was selected. Ninety of the sample students are in the Business College, 120 are in the Liberal Arts College, and 90 are in the Education College. Based upon this test, what can be concluded?
a. There is enough evidence to conclude that the proportions have changed significantly.
b. There is enough evidence to conclude that the proportions have not changed significantly.
c. The test is inconclusive.
d. None of the answers is correct.
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