Use Computer Software to Find the Multiple Regression Equation A) WEIGHT =196+2

question 36

Multiple Choice

Use computer software to find the multiple regression equation. Can the equation be used for prediction? A wildlife analyst gathered the data in the table to develop an equation to predict the weights of bears. He used WEIGHT as the dependent variable and CHEST, LENGTH,
And SEX as the independent variables. For SEX, he used male=1 and female=2. $$\begin{array} { c c c c } \hline \text { WEIGHT } & \text { CHEST } & \text { LENGTH } & \text { SEX } \\\hline 344 & 45.0 & 67.5 & 1 \\416 & 54.0 & 72.0 & 1 \\220 & 41.0 & 70.0 & 2 \\360 & 49.0 & 68.5 & 1 \\332 & 44.0 & 73.0 & 1 \\140 & 32.0 & 63.0 & 2 \\436 & 48.0 & 72.0 & 1 \\132 & 33.0 & 61.0 & 2 \\356 & 48.0 & 64.0 & 2 \\150 & 35.0 & 59.0 & 1 \\202 & 40.0 & 63.0 & 2 \\365 & 50.0 & 70.5 & 1 \\\hline\end{array}$$

• A) WEIGHT =196+2.35 CHEST +3.40 LENGTH +25 SEX; Yes, because the R2 is high.
• B) WEIGHT =-320+10.6 CHEST +7.3 LENGTH -10.7SEX ; Yes, because the P -value is high.
• C) WEIGHT =-442.6+12.1 CHES +3.6 LENGTH -23.8SEX ; Yes, because the adjusted R2 is high.
• D) WEIGHT =442.6+12.1 CHEST +4.2 LENGTH-21SEX ; Yes, because the P -value is low.

---

Definitions:

Default Value Property

A pre-set value assigned to a database field or software setting that is automatically applied when a new record is created or when no user input is provided.

Required Property

A characteristic of a programming object or database field that must be set for the object or field to function correctly.

Subdatasheet

In databases, a feature that allows one to view and edit related data from related tables within the main datasheet view.

One-to-many Relationship

A database association in which a singular record in a table connects with numerous records in another table.