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(Shortest Paths and Branch-and-Bound) Consider a general integer-constrained problem of the form
where X is some set. Construct a branch-and-bound tree that starts with a subproblem where the integer constraints are relaxed, and proceeds with successive restriction of the variables x1,...,xn to the values 0 or 1.
(a) Show that the original integer-constrained problem is equivalent to a single origin/single destination shortest path problem that involves the branchand-bound tree.
(b) Modify the label correcting method of Section 2.5.2 so that it becomes similar to the branch-and-bound method (see also the discussion in Section 2.5.2)
if mcclellan mcneil and newhouse have available a variable representing the presence of a treatment that is effective
Yyielding a $20,000 profit, and a 30% chance that the building will sell for $230,000, yielding a $70,000 profit. What is the expected profit? = E( X - ) = ( xi - What is Var(X)?
suppose that a flaw in a certain computer chip installed in computers was discovered that could result in a wrong
a backpack manufacturer produces an internal frame pack and an external frame pack. let x represent the number of
Why is this such an important issue for youth? What factors would you research and consider before voting on this issue?
general hospital a not-for-profit acute care facility has the following cost structure for its inpatient servicesfixed
The ANOVA table is given below,as well as a table of means and standard deviations for the three groups. Evaluate the t statistic for testing contrast
The Investment Research Institute reported in its Mutual Fund Fact Book that the number of mutual funds increased from 5725 in 1999 to 7977 in 2009. What is the geometric mean annual percent increase in the number of funds?
Debate if "failing to reject the null" is the same as "accepting the null." Support your position with examples of acceptance or rejection of the null. Next, give your opinion on whether or not a failed t test "proves" the null hypothesis
Suppose the organizers of the study are reconsidering their sample-size estimate. How many participants should be enrolled in each of the active and control intervention groups to achieve 80% power if a two-sided test is used with α = .05
according to data from the environmental protection agency the average daily water consumption for a household of four
Assume that the result is a sample size beyond what you can obtain. Use the compromise function to compute alpha and beta for a sample half the size. Indicate the resulting alpha and beta. Present an argument that your study is worth doing with th..
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