ISYE 6644 - Summer 2026/2027 - Final Exam
Questions and Answers with complete solution|Just
Released!!
What is a possible goal of an indifference-zone normal
means selection technique? - ANSWER-Find the normal
population having the largest mean, especially if the
largest mean is ≫ the second-largest.
TRUE or FALSE? The Bechhofer procedure for selecting
the normal population with the largest mean specifies the
appropriate number of observations to take from each
competing population, and simply selects the competitor
having the largest sample mean. - ANSWER-True
,TRUE or FALSE? Sometimes a single-stage procedure
like Bechhofer's is inefficient. In fact, it's possible to use
certain sequential procedures that take observations one-
at-a-time (instead of all at once in a single stage) to make
good selection decisions using fewer observations. -
ANSWER-True
For which scenarios(s) below might it be appropriate to
use a Bernoulli selection procedure?
a) Find the inventory policy having the largest profit.
b) Find the drug giving the best chance of a cure.
c) Find the maintenance policy having the lowest failure
probability.
,d) Find the scheduling rule that that has the best chance
of making an on-time delivery. - ANSWER-All three of (b),
(c), and (d).
Suppose that a Bernoulli selection procedure tells you to
take 100 observations from each of two populations, A and
B. It turns out that A gets 85 successes and B gets 46
successes. What do you think? - ANSWER-1) A almost
certainly has a higher success probability than B.
2) We could've probably stopped sampling a bit earlier
(i.e., with fewer than 100 observations) because A was so
far ahead of B.
, For which scenarios(s) below might it be appropriate to
use a multinomial selection procedure? - ANSWER-Find
the most-popular political candidate.
Suppose that we want to know which of Coke, Pepsi and
Dr.pepper is the most popular. We would like to make the
correct selection with probability of at least P*=0.90 in the
event that the ration of the highest-to-second-highest
preference probabilities happens to be at least 0*=1.4.
How many people does the single-stage procedure Mbem
require us to interview? - ANSWER-126
Go to the table in the notes and pick off the entry for k=3,
P^⋆=0.90, and θ^⋆=1.4.
Questions and Answers with complete solution|Just
Released!!
What is a possible goal of an indifference-zone normal
means selection technique? - ANSWER-Find the normal
population having the largest mean, especially if the
largest mean is ≫ the second-largest.
TRUE or FALSE? The Bechhofer procedure for selecting
the normal population with the largest mean specifies the
appropriate number of observations to take from each
competing population, and simply selects the competitor
having the largest sample mean. - ANSWER-True
,TRUE or FALSE? Sometimes a single-stage procedure
like Bechhofer's is inefficient. In fact, it's possible to use
certain sequential procedures that take observations one-
at-a-time (instead of all at once in a single stage) to make
good selection decisions using fewer observations. -
ANSWER-True
For which scenarios(s) below might it be appropriate to
use a Bernoulli selection procedure?
a) Find the inventory policy having the largest profit.
b) Find the drug giving the best chance of a cure.
c) Find the maintenance policy having the lowest failure
probability.
,d) Find the scheduling rule that that has the best chance
of making an on-time delivery. - ANSWER-All three of (b),
(c), and (d).
Suppose that a Bernoulli selection procedure tells you to
take 100 observations from each of two populations, A and
B. It turns out that A gets 85 successes and B gets 46
successes. What do you think? - ANSWER-1) A almost
certainly has a higher success probability than B.
2) We could've probably stopped sampling a bit earlier
(i.e., with fewer than 100 observations) because A was so
far ahead of B.
, For which scenarios(s) below might it be appropriate to
use a multinomial selection procedure? - ANSWER-Find
the most-popular political candidate.
Suppose that we want to know which of Coke, Pepsi and
Dr.pepper is the most popular. We would like to make the
correct selection with probability of at least P*=0.90 in the
event that the ration of the highest-to-second-highest
preference probabilities happens to be at least 0*=1.4.
How many people does the single-stage procedure Mbem
require us to interview? - ANSWER-126
Go to the table in the notes and pick off the entry for k=3,
P^⋆=0.90, and θ^⋆=1.4.
