A Time Series Is Shown in the Table Below A Apply Exponential Smoothing with W = 0

question 140

Essay

A time series is shown in the table below: $$\begin{array} { | c c | } \hline \text { Period } t & \\\hline 1 & 40 \\2 & 45 \\3 & 44 \\4 & 47 \\5 & 48 \\6 & 50 \\7 & 52 \\8 & 51 \\9 & 48 \\10 & 47 \\\hline\end{array}$$ a. Apply exponential smoothing with w = 0.1 and w = 0.8 to help detect the components of the time series.
b. Draw the time series and the two sets of exponentially smoothed values. Does there appear to be a trend component in the time series?

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Definitions:

Parameter Query

A type of database query that requires the user to provide one or more criteria values to filter the results when the query is run.

Dialog Box

A small window that appears in a graphical interface asking the user to provide data input or make a choice.

Field Criteria

Conditions or requirements specified in a database query that determine which records to select or retrieve.

Crosstab Row

The horizontal part of a crosstabulation table that categorizes data for comparison across different variables.