Descriptor
| Analysis of Variance | 1 |
| Evaluation Methods | 1 |
| Hypothesis Testing | 1 |
| Mathematical Models | 1 |
| Statistical Significance | 1 |
| Statistical Studies | 1 |
| Trend Analysis | 1 |
Source
Author
| Gullickson, Arlen R. | 1 |
Publication Type
Education Level
Audience
Location
Laws, Policies, & Programs
Assessments and Surveys
What Works Clearinghouse Rating
Violation of Homogeneity of Variance Assumption in the Integrated Moving Averages Time Series Model.
Download full textGullickson, Arlen R.; And Others – 1971
This study is an analysis of the robustness of the Box-Tiao integrated moving averages model for analysis of time series quasi experiments. One of the assumptions underlying the Box-Tiao model is that all N values of alpha subscript t come from the same population which has a variance sigma squared. The robustness was studied only in terms of…
Descriptors: Analysis of Variance, Evaluation Methods, Hypothesis Testing, Mathematical Models
