Arcs in a transshipment problem
a. must connect every node to a transshipment node.
b. represent the cost of shipments.
c. indicate the direction of the flow.
d. All of the alternatives are correct.
Question 2
The sampling distribution of the ratio of independent sample variances extracted from two normal populations with equal variances is the _____.
a. 2 distribution
b. normal distribution
c. Z distribution
d. t distribution