ISYE 6644 CORRECT TEST PAPER QUESTIONS AND
ANSWERS SURE A+
✔✔TRUE or FALSE? There are 100s of SMARTs files for you to play around with. -
✔✔True
✔✔Modules and spreadsheets from which panels are used in the demo? - ✔✔Basic
Process, Advanced Process, Advanced Transfer
✔✔((1==1)*10) + ((1==0)*5) = ? - ✔✔10
✔✔TRUE or FALSE? You can find individual Seize, Delay, and Release modules in this
template (Advanced Process Template). - ✔✔True
✔✔Where can you find some sort of Seize? - ✔✔Within a Process module in the Basic
Process template, A seize module in the Advanced Process template, A Seize block in
the Blocks template
✔✔Where can you set the buffer size of a certain queue? - ✔✔In a Queue block in the
Blocks template
✔✔TRUE or FALSE? It's possible to request servers in a set randomly, cyclically, or
according to some priority characteristic (such as the order in which they are placed in
the set). - ✔✔True
✔✔What would I do to change the lead time of orders from my supplier to UNIF(0,1)
days (which happens to be a little faster than the current lead time)? - ✔✔Go to the
Expression spreadsheet in the Advanced Process template and change the expression
Delivery Lag to UNIF(0,1). OR Go to the "Wait for Delivery" Delay module in the main
program and change the expression Delivery Lag to UNIF(0,1)
, ✔✔If you wanted to change a part's sequence of stations, what would you do? - ✔✔Use
the Sequence spreadsheet in the Advanced Transfer template.
✔✔TRUE or FALSE? The ROUTE module is found in the Advanced Transfer template
and allows you to move entities from Station to Station. - ✔✔True
✔✔A sequence must consist of unique visitation locations.... no repeat visits! - ✔✔False
✔✔You could use the Advanced Set functionality to define a "Set of Sequences" -
✔✔True
✔✔The name of the automatically supplied ARENA attribute that stores a particular
entity's sequence is Entity.Sequence? - ✔✔True
✔✔TRUE or FALSE? You SEIZE-DELAY-RELEASE a conveyor. - ✔✔False
✔✔An ENTER module is usually paired with what other module? - ✔✔LEAVE
✔✔Which property is not desirable for a good pseudo-random number generator? -
✔✔We must be able to look up the series of PRNs from a table.
✔✔Which of the following PRN generators aren't very good? - ✔✔Generators involving
physical devices such as coin flips or at least significant digit readings from an atomic
clock, random number tables, von Neuman's mid-square method, Fibonacci and
additive congruential generators.
✔✔TRUE or FALSE? (1XOR1)XOR1 = 1? - ✔✔True. (1XOR1)XOR1 = 0XOR1 = 1
✔✔TRUE or FALSE? There are good PRN generators out there having incredible cycle
lengths of over 2^100 - ✔✔True
✔✔TRUE or FALSE? RANDU is a pretty good generator. - ✔✔False. RANDU has
several problems with hyperplanes.
✔✔TRUE or FALSE? Alpha =P(Reject Ho|Ho is true) is the probability of a Type 1
error? - ✔✔True
✔✔In the context of evaluating a PRN generator, which kinds of statistical tests are we
interested in? - ✔✔Goodness-of-fit tests, independence tests
✔✔If the chi-squared goodness-of-fit statistic is much greater than the relevant quantile,
what do we do? - ✔✔Reject the goodness-of-fit test and declare that the PRNs are
probably not uniform.
ANSWERS SURE A+
✔✔TRUE or FALSE? There are 100s of SMARTs files for you to play around with. -
✔✔True
✔✔Modules and spreadsheets from which panels are used in the demo? - ✔✔Basic
Process, Advanced Process, Advanced Transfer
✔✔((1==1)*10) + ((1==0)*5) = ? - ✔✔10
✔✔TRUE or FALSE? You can find individual Seize, Delay, and Release modules in this
template (Advanced Process Template). - ✔✔True
✔✔Where can you find some sort of Seize? - ✔✔Within a Process module in the Basic
Process template, A seize module in the Advanced Process template, A Seize block in
the Blocks template
✔✔Where can you set the buffer size of a certain queue? - ✔✔In a Queue block in the
Blocks template
✔✔TRUE or FALSE? It's possible to request servers in a set randomly, cyclically, or
according to some priority characteristic (such as the order in which they are placed in
the set). - ✔✔True
✔✔What would I do to change the lead time of orders from my supplier to UNIF(0,1)
days (which happens to be a little faster than the current lead time)? - ✔✔Go to the
Expression spreadsheet in the Advanced Process template and change the expression
Delivery Lag to UNIF(0,1). OR Go to the "Wait for Delivery" Delay module in the main
program and change the expression Delivery Lag to UNIF(0,1)
, ✔✔If you wanted to change a part's sequence of stations, what would you do? - ✔✔Use
the Sequence spreadsheet in the Advanced Transfer template.
✔✔TRUE or FALSE? The ROUTE module is found in the Advanced Transfer template
and allows you to move entities from Station to Station. - ✔✔True
✔✔A sequence must consist of unique visitation locations.... no repeat visits! - ✔✔False
✔✔You could use the Advanced Set functionality to define a "Set of Sequences" -
✔✔True
✔✔The name of the automatically supplied ARENA attribute that stores a particular
entity's sequence is Entity.Sequence? - ✔✔True
✔✔TRUE or FALSE? You SEIZE-DELAY-RELEASE a conveyor. - ✔✔False
✔✔An ENTER module is usually paired with what other module? - ✔✔LEAVE
✔✔Which property is not desirable for a good pseudo-random number generator? -
✔✔We must be able to look up the series of PRNs from a table.
✔✔Which of the following PRN generators aren't very good? - ✔✔Generators involving
physical devices such as coin flips or at least significant digit readings from an atomic
clock, random number tables, von Neuman's mid-square method, Fibonacci and
additive congruential generators.
✔✔TRUE or FALSE? (1XOR1)XOR1 = 1? - ✔✔True. (1XOR1)XOR1 = 0XOR1 = 1
✔✔TRUE or FALSE? There are good PRN generators out there having incredible cycle
lengths of over 2^100 - ✔✔True
✔✔TRUE or FALSE? RANDU is a pretty good generator. - ✔✔False. RANDU has
several problems with hyperplanes.
✔✔TRUE or FALSE? Alpha =P(Reject Ho|Ho is true) is the probability of a Type 1
error? - ✔✔True
✔✔In the context of evaluating a PRN generator, which kinds of statistical tests are we
interested in? - ✔✔Goodness-of-fit tests, independence tests
✔✔If the chi-squared goodness-of-fit statistic is much greater than the relevant quantile,
what do we do? - ✔✔Reject the goodness-of-fit test and declare that the PRNs are
probably not uniform.
