ISYE 6644 Final Exam Prep 2 | Complete
Study Guide with Practice Questions &
Solutions
If f(x, y) = cxy for all 0 < x < 1 and 1 < y < 2, where c is whatever value makes this
thing integrate to 1, then X and Y are independent random variables - ---
✔✔✔ANSWER----TRUE. (Because f(x, y) = a(x)b(y) factors nicely, and there
are no funny limits.)
In our Arena Call Center example, it was possible for entities to be left in the
system when it shut down at 7:00 p.m. (even though we stopped allowing
customers to enter the system at 6:00 p.m.). - ---✔✔✔ANSWER----TRUE
— because of the small chance that a callback will occur.
An entity can be scheduled to visit the same resource twice, with different service
time distributions on the two visits! - ---✔✔✔ANSWER----TRUE
, Arena has a built-in Input Analyzer tool that allows for the fitting of certain
distributions to data. - ---✔✔✔ANSWER----TRUE
The Kolmogorov-Smirnov test can be used both to see (i) if data seem to fit to a
particular hypothesized distribution and (ii) if the data are independent. - ---
✔✔✔ANSWER----FALSE. (It's just a goodness-of-fit test.)
Welch's method is a graphical technique to estimate truncation (initialization bias)
points for steady-state simulation. - ---✔✔✔ANSWER----TRUE
If you are using a ranking-and-selection procedure and two competitors happen to
fall within the indifference-zone, then you don't really care too much which one
you end up selecting. - ---✔✔✔ANSWER----TRUE. That's why it's called
the IZ!
TRUE or FALSE? Sequential ranking-and-selection procedures are designed to stop
early if one alternative seems to be way out in front of the others. - ---
✔✔✔ANSWER----TRUE
Suppose, when designing a ranking-and-selection procedure, you have decided to
increase the desired probability of correct selection compared to a previous run of
the procedure. What can you expect? (a) Sample sizes that are about the same
(b) Larger sample sizes
(c) Somewhat lower achieved Pr(CS)
Study Guide with Practice Questions &
Solutions
If f(x, y) = cxy for all 0 < x < 1 and 1 < y < 2, where c is whatever value makes this
thing integrate to 1, then X and Y are independent random variables - ---
✔✔✔ANSWER----TRUE. (Because f(x, y) = a(x)b(y) factors nicely, and there
are no funny limits.)
In our Arena Call Center example, it was possible for entities to be left in the
system when it shut down at 7:00 p.m. (even though we stopped allowing
customers to enter the system at 6:00 p.m.). - ---✔✔✔ANSWER----TRUE
— because of the small chance that a callback will occur.
An entity can be scheduled to visit the same resource twice, with different service
time distributions on the two visits! - ---✔✔✔ANSWER----TRUE
, Arena has a built-in Input Analyzer tool that allows for the fitting of certain
distributions to data. - ---✔✔✔ANSWER----TRUE
The Kolmogorov-Smirnov test can be used both to see (i) if data seem to fit to a
particular hypothesized distribution and (ii) if the data are independent. - ---
✔✔✔ANSWER----FALSE. (It's just a goodness-of-fit test.)
Welch's method is a graphical technique to estimate truncation (initialization bias)
points for steady-state simulation. - ---✔✔✔ANSWER----TRUE
If you are using a ranking-and-selection procedure and two competitors happen to
fall within the indifference-zone, then you don't really care too much which one
you end up selecting. - ---✔✔✔ANSWER----TRUE. That's why it's called
the IZ!
TRUE or FALSE? Sequential ranking-and-selection procedures are designed to stop
early if one alternative seems to be way out in front of the others. - ---
✔✔✔ANSWER----TRUE
Suppose, when designing a ranking-and-selection procedure, you have decided to
increase the desired probability of correct selection compared to a previous run of
the procedure. What can you expect? (a) Sample sizes that are about the same
(b) Larger sample sizes
(c) Somewhat lower achieved Pr(CS)
