Given the Following Historical Data, What Is the Moving-Average Forecast

question 76

Multiple Choice

Given the following historical data, what is the moving-average forecast for period 6 based on the last three periods?
$$\begin{array} { | c | c | } \hline \text { Periud } & \text { Value } \\\hline 1 & 73 \\\hline 2 & 68 \\\hline 3 & 65 \\\hline 4 & 72 \\\hline 5 & 67 \\\hline\end{array}$$

• A) 67
• B) 68
• C) 69
• D) 100
• E) 115

---

Definitions:

Total Variation

The sum of squared differences between observed values and their overall mean in a dataset.

Predictor Variable

A variable used in statistical modeling to predict or explain changes in the dependent variable.

Response Variable

A variable that measures the outcome of a study or experiment; it is the effect or result that is influenced by other variables.

Linear Regression

A statistical method that models the relationship between a dependent variable and one or more independent variables by fitting a linear equation to observed data.