Quiz Time Series

A time series is a sequence of data points, measured typically at successive spaced at uniform time intervals.

• TRUE

• FALSE

This time series plot is an example of:

• An Increasing trend

• Seasonal variation

• Decreasing trend

• Structure Change

Which is moving average's objective?

• forecasting

• smoothing

• estimate trend and cyclic

• all the above option

Which of the following can't be a component of time series?

• Seasonal

• Cyclic

• Trend

• mean

Which graph displays seasonal data?

• 
• 
• 
• 

What is Time Series?

• A set of data over a period of time

• A set of data over a year

• A set of data related with money only

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Determine the appropriate components of time series for the situation below:

The increase in sales of fireworks during New Year.

• Trend

• Seasonal Variations

• Cyclical Variations

• Irregular fluctuations

A time-series analysis is a forecasting technique that ___________.

• An explanation for watches in the work place.

• Uses a time sequence to determine a mission statement.

• Is a combination of three different forecasting techniques

• identifies underlying patters of demand.

Forecast error is based off of:

• The product of demand and time period.

• The sum of differences in demand.

• The difference between forecast and demand.

Consider a series that follows an MA(1) with zero mean and a moving average coefficient of 0.4. What is the value of the autocovariance at lag 1?

• 0.4

• 1.

• 1.4

• It is not possible to determine the value of the autocovariances without knowing the disturbance variance.