ISYE 6644 EXAM 2 FULL SOLUTION STUDY
GUIDE
◉ 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.)
◉ 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!
, ◉ 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.
◉ Welch's method is a graphical technique to estimate truncation
(initialization bias) points for steady-state simulation..
Answer: TRUE
◉ 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.)
◉ 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
GUIDE
◉ 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.)
◉ 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!
, ◉ 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.
◉ Welch's method is a graphical technique to estimate truncation
(initialization bias) points for steady-state simulation..
Answer: TRUE
◉ 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.)
◉ 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
