ISYE6644 Prep Final Exam
Questions and
Answers 2025
hat is a possible goal of an indifference- Find the normal population having the largest mean, especially if the largest
mean is one normal means selection technique? the second-largest.
RUE or FALSE? The Bechhofer procedure True or
selecting the normal population with he largest mean
specifies the appropriate number of observations to
take from each ompeting population, and simply
selects he competitor having the largest sample
mean.
RUE or FALSE? Sometimes a single-stage True
procedure like Bechhofer's is inefficient. In act, it's
possible to use certain sequential procedures that take
observations one-at-time (instead of all at once in a
single tage) to make good selection decisions using
fewer observations.
For which scenarios(s) below might it beAll three of (b), (c), and (d).
ppropriate to Use a Bernoulli selection procedure?
) Find the inventory policy having the largest
profit.
b) Find the drug giving the best chance of
cure.
) Find the maintenance policy having the lowest
failure probability.
) Find the scheduling rule that that has the best
chance of making an on-time delivery.
ISYE 6644 Prep Final Exam Questions and Answers 2025
, uppose that a Bernoulli selection l) A almost certainly has a higher success fewer than 100
procedure tells you to take 100 probability than B. 2) We could've probably
bservations from each of two stopped sampling a bit earlier (i.e., with
populations, and B. It turns out observations) because A was so far ahead of B.
that A gets 35 uccesses and B
gets 46 successes. What o you
think?
For which scenarios(s) below might it be Find the most-popular political candidate.
ppropriate to use a multinomial
selection procedure?
oppose that we want to know 126 and
which of oke, Pepsi and Dr.pepper Go to the table in the notes and pick off the entry
is the most popular. We would like for k=3,
to make the correct election with
probability of at least P=O.90 n
the event that the ration of the
highest0-second-highest
preference robabilities happens to
be at Least 0-1.4. How many
people does the single-stage
procedure Mbem require us to
interview?
hich of the following parameters All of the above
can you et confidence intervals
for?
Means
ariances
uantiles
Differences between the means of
two ystems
If we have an iid normal sample t
of bservations, Xl, X2,...Xn,
what probability istribution is
most-commonly Used to btain
cofidence intervals for the
mean?
RUE or FALSE? The paired Cl for FALSE. {In fact, it's easier to distinguish between the two means (f Xi is
the ifferences in two means is positively correlated with Yi. Think about my parallel parking example
designed to ork especially well if in the class notes.}
all of the bservations from the
first population are ompletely
independent of all of the
bservations from the second
population.
RUE or FALSE? You can use a TRUE
version of
Independent replications to
obtain onfidence intervals for
the difference in he means
from two simulation models.
RUE or FALSE? The common TRUE
random numbers technique
intentionally induces positive
correlation between two systems
much like a paired-tconfidence
interval.
RN depends on someone's You do - you are powerful!
ability to manipulate the
underlying pseudo-random
numbers - e.g., use the same
arrival times hen simulating two
competing simulated ystems. So
who ultimately controls those
pRNs??
ISYE 6644 Prep Final Exam Questions and Answers 2025