QMB 3200 MIDTERM EXAM QUESTIONS | TESTED AND TRIED ANSWERS | LATEST UPDATE 2024/2025 100% (GRADE A+)

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