QMB 3200 MIDTERM EXAM QUESTIONS | TESTED
AND TRIED ANSWERS | LATEST UPDATE
2024/2025 100% (GRADE A+)
Which of the following statements regarding a time series technique is true?
Ans>> 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?
Ans>> Simple exponential smoothing
Which of the following correlation coefficient values represents the strongest positive
correlation between two factors in a data set?
Ans>> r-=0.931
It is NOT possible for a forecast to be both responsive and inaccurate.
Ans>> False
1
, In a time series, what is a black swan?
Ans>> a particularly high-impact incident of extreme consequence that is unexpected or
considered highly improbable
Calculating a regression equation for a given set of data identifies the specific values of ____
Ans>> the slope and intercept
Averaging forecast errors over time results in the performance measure known as *****?
Ans>> mean error
What is the ME for the forecast errors of 5, 10, 0, and -3?
Ans>> 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
Ans>> exogenous
2
AND TRIED ANSWERS | LATEST UPDATE
2024/2025 100% (GRADE A+)
Which of the following statements regarding a time series technique is true?
Ans>> 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?
Ans>> Simple exponential smoothing
Which of the following correlation coefficient values represents the strongest positive
correlation between two factors in a data set?
Ans>> r-=0.931
It is NOT possible for a forecast to be both responsive and inaccurate.
Ans>> False
1
, In a time series, what is a black swan?
Ans>> a particularly high-impact incident of extreme consequence that is unexpected or
considered highly improbable
Calculating a regression equation for a given set of data identifies the specific values of ____
Ans>> the slope and intercept
Averaging forecast errors over time results in the performance measure known as *****?
Ans>> mean error
What is the ME for the forecast errors of 5, 10, 0, and -3?
Ans>> 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
Ans>> exogenous
2
