QMB3200 MIDTERM EXAM QUESTIONS
AND ANSWERS
Which of the following statements regarding a time series
technique is true? -
correct answer ✅Time series techniques focus on the historical
behavior of some outcome of interest to predict its future behavior.
Which time series technique predicts a future value by combining
the previous prediction and some portion of the error in the
prediction? -
correct answer ✅Simple exponential smoothing
Which of the following correlation coefficient values represents the
strongest positive correlation between two factors in a data set? -
correct answer ✅r-=0.931
It is NOT possible for a forecast to be both responsive and
inaccurate. -
correct answer ✅False
In a time series, what is a black swan? -
correct answer ✅a particularly high-impact incident of extreme
consequence that is unexpected or considered highly improbable
, QMB3200 MIDTERM EXAM QUESTIONS
AND ANSWERS
Calculating a regression equation for a given set of data identifies
the specific values of ____ -
correct answer ✅the slope and intercept
Averaging forecast errors over time results in the performance
measure known as *****? -
correct answer ✅mean error
What is the ME for the forecast errors of 5, 10, 0, and -3? -
correct answer ✅3
one-time shocks to a time series from a distinctly external
influence, such as a sudden dip in consumer sales after a disruptive
event, are called ____ variations -
correct answer ✅exogenous
Several forecasting methods rely on insights from a group of
people, but which method does NOT have the group discuss their
opinions? -
correct answer ✅Delphi Groups
AND ANSWERS
Which of the following statements regarding a time series
technique is true? -
correct answer ✅Time series techniques focus on the historical
behavior of some outcome of interest to predict its future behavior.
Which time series technique predicts a future value by combining
the previous prediction and some portion of the error in the
prediction? -
correct answer ✅Simple exponential smoothing
Which of the following correlation coefficient values represents the
strongest positive correlation between two factors in a data set? -
correct answer ✅r-=0.931
It is NOT possible for a forecast to be both responsive and
inaccurate. -
correct answer ✅False
In a time series, what is a black swan? -
correct answer ✅a particularly high-impact incident of extreme
consequence that is unexpected or considered highly improbable
, QMB3200 MIDTERM EXAM QUESTIONS
AND ANSWERS
Calculating a regression equation for a given set of data identifies
the specific values of ____ -
correct answer ✅the slope and intercept
Averaging forecast errors over time results in the performance
measure known as *****? -
correct answer ✅mean error
What is the ME for the forecast errors of 5, 10, 0, and -3? -
correct answer ✅3
one-time shocks to a time series from a distinctly external
influence, such as a sudden dip in consumer sales after a disruptive
event, are called ____ variations -
correct answer ✅exogenous
Several forecasting methods rely on insights from a group of
people, but which method does NOT have the group discuss their
opinions? -
correct answer ✅Delphi Groups
