Consider the Following Data and Excel Output for a Simple

question 47

Multiple Choice

Consider the following data and Excel output for a simple linear regression model.How much of the total variation in the dependent variable (Y) is explained by the independent variable (X) ?
$$\begin{array} { | c | c | c | } \hline \text { Period } & \text { Y } & \text { X } \\\hline \text { Period 1 } & 10 & 1 \\\hline \text { Period 2 } & 11 & 2 \\\hline \text { Period 3 } & 9 & 3 \\\hline \text { Period 4 } & 12 & 4 \\\hline \text { Period 5 } & 13 & 5 \\\hline \text { Period 6 } & 12 & 6 \\\hline \text { Period 7 } & 15 & 7 \\\hline\end{array}$$
$$\begin{array} { | l | l | } \hline \text { Intercept } & 2.267 \\\hline \text { Slope } & 0.843 \\\hline \text { SE } & 1.810 \\\hline \text { Correlation } & 0.890 \\\hline \text { r-squared } & 0.791 \\\hline\end{array}$$

• A)2.267
• B)0.843
• C)1.810
• D)0.890
• E)0.791

---

Definitions:

Arousal Disorder

A type of sexual dysfunction characterized by a persistent inability to attain or maintain an adequate level of sexual excitement, affecting sexual activity.

Erectile Dysfunction

A condition characterized by the inability to maintain an erection sufficient for satisfactory sexual performance.

Synarthroses Joints

Immovable joints in the body where two bones are closely joined, allowing minimal to no movement.

Immovable

Incapable of being moved or altered in position or state.