A Regression Analysis Was Performed to Study the Relationship Between

question 71

Essay

A regression analysis was performed to study the relationship between a dependent variable and four independent variables. The following information was obtained:
r² = 0.95, SSR = 9800, n = 50.
ANOVA $$\begin{array} { | l | r c c c | } \hline \text { Source of Variation } & d f & \text { SS } & M S & F \\\hline \text { Regression } & 4 & 9800 & 2450 & 50.114 \\\text { Error } & 45 & 2200 & 48.889 & \\\hline \text { Total } & 49 & 12,000 & & \\\hline\end{array}$$ Test the overall validity of the model at the 5% significance level.

---

Definitions:

Exercise Program

A structured regimen or plan of physical activities designed to improve fitness or achieve a specific health outcome.

Attrition

The reduction in the number of participants during the course of a study, often leading to potential biases.

Obese People

Individuals who have a body mass index (BMI) of 30 or higher, indicating a high amount of body fat in relation to lean body mass.

One-group Posttest

An experimental design where only one group is studied and the assessment occurs only after the intervention or treatment.