In the Model Y = β₀ + β₁x + β₂d

question 32

Multiple Choice

In the model y = β₀ + β₁x + β₂d + β₃xd + ε, for a given x and d = 1, the predicted value of y is given by ________.

• A) = b₀ + b₁x + b₂ + b₃x
• B) = b₀ + b₂ + b₁x + b₃x
• C) = (b₀ + b₂) + (b₁ + b₃)x
• D) All of these choices are correct.

---

Definitions:

Perpendicularity

The state or condition of being perpendicular, meaning two lines or planes intersect at a right angle (90 degrees) to each other.

Tolerance of Form

Specifies the allowable deviation from the ideal shape of an object without specifying size, ensuring parts fit together correctly.

Tolerances of Size

Specifies the permissible limits of variation in an object's size, critical for ensuring parts fit together properly in manufacturing.

Cylindrical Tolerance Zone

A specified range of acceptable measurements or dimensions for the diameter or roundness of cylindrical parts, ensuring proper fit and function.