The Number of Scores Free to Vary When Estimating a Population

question 56

Multiple Choice

The number of scores free to vary when estimating a population parameter is/are:

• A)degrees of freedom
• B)number of scores minus 1
• C)number of scores multiplied by the standard deviation
• D)both A and B

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Definitions:

Holt's Model

A forecasting technique that extends exponential smoothing to allow forecasting of data with a trend.

Trend Component

An underlying pattern in data that shows a persistent, general direction of movement over time.

Simple Exponential Smoothing

A time series forecasting method for univariate data that applies decreasing weights to past observations as they age.

Mean Absolute Deviation

A statistical measure of the dispersion or variability in a data set, calculated as the average distance between each data point and the mean of the data set.