Scms Answers

Question 1 | | 4 / 4 points |

The overall upward or downward pattern of the data in an annual time series will be contained in the ____________ component.

| | trend |

| | cyclical |

| | irregular |

| | seasonal |

Question 2 | | 4 / 4 points |

When using the exponentially weighted moving average for purposes of forecasting rather than smoothing,

| | the previous smoothed value becomes the forecast. |

| | the current smoothed value becomes the forecast. |

| | the next smoothed value becomes the forecast. |

| | None of the above. |

Question 3 | | 4 / 4 points |

The following is the list of MAD statistics for each of the models you have estimated from time-series data:

Model | MAD |

Linear Trend | 1.38 |

Quadratic Trend | 1.22 |

Exponential Trend | 1.39 |

AR(2) | 0.71 |

Based on the MAD criterion, the most appropriate model is

| | linear trend. |

| | quadradic trend. |

| | exponential trend. |

| | AR(2). |

Question 4 | | 4 / 4 points |

The following table contains the number of complaints received in a department store for the first 6 months of last year.

Month   Complaints

    Jan                36

    Feb                45

    Mar              81

    Apr             108

    May           144                  

Referring to the above table, if a three-term moving average is used to smooth this series, what would be the second calculated term?

| | 36 |

| | 40.5 |

| | 54 |

| | 78 |

Question 5 | | 4 / 4 points |

TABLE 16-4                                                                                                                                                                                  Given below are EXCEL outputs for various estimated autoregressive models for Coca-Cola's real operating revenues (in billions of dollars) from 1975 to 1998.  From the data, we also know that the real operating revenues for 1996, 1997, and 1998 are 11.7909, 11.7757...