ACTUAL Exam Questions and CORRECT
Answers
Linear programming - CORRECT ANSWER production mix: what production mix will
provide the most profit given our constraints?
Cluster analysis - CORRECT ANSWER groupings: which participants belong together
naturally?
-mostly used for marketing/data mining techniques
Decision tree - CORRECT ANSWER what's the best decision based on estimated value of
every opportunity that we have?
-when making financial decisions.
statistical analysis (gives us the statistic to interpret) - CORRECT ANSWER 1. t-test (t-stat)
2. anova (f-value)
3. regression (linear, multiple, & logistic) (r-square "goodness of fit")
4. time series (r-squared)
5. chi-square (x2)
p-value must me < .05 to reject the null hypothesis
decision analysis (gives us the answer) - CORRECT ANSWER 1. break-even (# to produce)
2. linear programming (mix to produce)
3. cross over analysis (best cost for volume produce)
4. cluster analysis (groupings)
, 5. decision tree (best decision based on estimated value)
Breakevn anlaysis - CORRECT ANSWER how much of my product do I need to sell to cover
the cost?
Cross over analysis - CORRECT ANSWER volume: which option we have available to us
will be cheaper cost to us at which volume?
Linear regression (predict) - CORRECT ANSWER we use independent variable (predictor) to
predict dependent variable (prediction).
Logistic regression (predict) - CORRECT ANSWER our dependent variable is categorical
(binary dependent variable (nominal)). Pass/Fail etc...
R-square value - CORRECT ANSWER means "goodness of fit". How well did that variable
fit at predicting your outcome?
R-square (0-1): .74144 = 74%
PCDA Model - CORRECT ANSWER Circular, never ending problem solving process. Plan-
Do-Check- Study
(plan-do-study-act)
SIPOC - CORRECT ANSWER Suppliers, Inputs, Process, Outputs, Customers.
-a high level view of a process. Allows us to see all elements that could influence the overall
process.
quality assurance - CORRECT ANSWER assess process capability and recommends
preventive action.
-prevents defects from occuring