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Business Analytics questions with right answers.
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Business Analytics questions with right answers.

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  • August 26, 2024
  • 3
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • business analytics questions with right answers

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  • Business Analytics
  • Business Analytics

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Business Analytics questions with right
answers.
In Excel's Trendline tool, the value of the ________ gives the measure of fit of the line to the data. ANS
- D) R-squared



For an independent variable Y, the error associated with the i th observation is: ________ ANS - A) ei =
Yi - Y^i



What is the value of the coefficient b0? [pay more attention to ask you to pick b0, not b1] ANS -
254.8371



What is the estimated cost of raising a 10-feet wall? ANS - 1123.008



The R2 value:________ ANS - is the variability of the observed Y-values from the predicted values



) For a simple linear regression model, significance of regression is: ________ ANS - a hypothesis test of
whether the true regression coefficient ß1 is zero



) When two or more independent variables in the same regression model can predict each other better
than the ANS - multicollinearity



) The Delphi method used for forecasting: ________. ANS - uses a panel of experts, whose identities are
typically kept confidential from one another, to respond to a sequence of questionnaires.



The data for the number of hand-held gaming devices sold for the past 5 weeks are 15 units, 20 units, 25
units, 30 units, and 17 units respectively. The time series appears to be relatively stable, without trend,
seasonal, or cyclical effects; thus, a moving average model would be appropriate. Setting k = 3 the three-
period moving average forecast for week 6 is ________. ANS - 24 units



10) For the given data, the simple moving average mean absolute deviation (MAD) is ________. ANS -
D) 14.25

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