ISyE 6501 Final Quiz Latest Update
with complete solutions
13.Design of Experiments (DOE)-RIGHT ANSWERHow can we still
have a representative sample of each combination of factors, while
only surveying 600 people?
How to determine which of the several factors are most important to
predicting someone's answers? comparison to measure difference
control for other factors and effects
blocking factors that account for the variation between factors (red
sports car vs red minivan example)
14.A/B testing-RIGHT ANSWERWhenever we want to choose
between 2 alternatives. As long as the following 3 things are true:
1st, we need to be able to collect a lot of data quickly enough to get an
answer in time to use it.
2nd, the data we collect has to be from a representative sample of the
whole
3rd, the amount of data we collect has to be small compared to the
total population we want to use the answer on.
Before modeling and before collecting data
15.(Full) Factorial Design-RIGHT ANSWERTest every combination of
variables in an experiment to find each one's effect, and interaction
effects on the outcome.
16.Fractional Factorial Design-RIGHT ANSWERA subset of
combinations to test - selected com- binations give same result as full
factorial design i.e a balanced design
, Before modeling and before collecting data
17.What approach to take if it is believed the factors we can change
are inde- pendent? (Factorial design)-RIGHT ANSWERTest a subset of
combinations and use regression to estimate the effect of each choice
Before modeling and before collecting data
18.Exploration vs. Exploitation-RIGHT ANSWERExploration - focusing
on getting more informa- tion
Exploitation - getting immediate value
19.Multi-Armed Bandit Problem-RIGHT
ANSWERExploration/Exploitation principle
Several slot machines, not known which has the highest payout, so
must test all (K) alternatives
1st test = equal probability
2nd test = update probabilities based off of 1st test (we can also
change-RIGHT ANSWER# of tests, how we update probabilities,
change how we assign new tests)
20.What needs to be the case when matching data to a probability
distribution to gain insight based on how the distribution is derived?-
RIGHT ANSWERThe only information we have about a data point is
the response, or when it would be hard to collect and analyze
additional information
21.What is the Bernoulli distribution is useful to model?-RIGHT
ANSWERA single event. i.e flipping a coin, will it rain or not?, will I get
this job offer or not?
Only really useful when you put many of them together (flip a coin
10,000 times)
with complete solutions
13.Design of Experiments (DOE)-RIGHT ANSWERHow can we still
have a representative sample of each combination of factors, while
only surveying 600 people?
How to determine which of the several factors are most important to
predicting someone's answers? comparison to measure difference
control for other factors and effects
blocking factors that account for the variation between factors (red
sports car vs red minivan example)
14.A/B testing-RIGHT ANSWERWhenever we want to choose
between 2 alternatives. As long as the following 3 things are true:
1st, we need to be able to collect a lot of data quickly enough to get an
answer in time to use it.
2nd, the data we collect has to be from a representative sample of the
whole
3rd, the amount of data we collect has to be small compared to the
total population we want to use the answer on.
Before modeling and before collecting data
15.(Full) Factorial Design-RIGHT ANSWERTest every combination of
variables in an experiment to find each one's effect, and interaction
effects on the outcome.
16.Fractional Factorial Design-RIGHT ANSWERA subset of
combinations to test - selected com- binations give same result as full
factorial design i.e a balanced design
, Before modeling and before collecting data
17.What approach to take if it is believed the factors we can change
are inde- pendent? (Factorial design)-RIGHT ANSWERTest a subset of
combinations and use regression to estimate the effect of each choice
Before modeling and before collecting data
18.Exploration vs. Exploitation-RIGHT ANSWERExploration - focusing
on getting more informa- tion
Exploitation - getting immediate value
19.Multi-Armed Bandit Problem-RIGHT
ANSWERExploration/Exploitation principle
Several slot machines, not known which has the highest payout, so
must test all (K) alternatives
1st test = equal probability
2nd test = update probabilities based off of 1st test (we can also
change-RIGHT ANSWER# of tests, how we update probabilities,
change how we assign new tests)
20.What needs to be the case when matching data to a probability
distribution to gain insight based on how the distribution is derived?-
RIGHT ANSWERThe only information we have about a data point is
the response, or when it would be hard to collect and analyze
additional information
21.What is the Bernoulli distribution is useful to model?-RIGHT
ANSWERA single event. i.e flipping a coin, will it rain or not?, will I get
this job offer or not?
Only really useful when you put many of them together (flip a coin
10,000 times)
