In a Simple Linear Regression Analysis (Where Y Is a Dependent

question 125

Multiple Choice

In a simple linear regression analysis (where y is a dependent and x an independent variable) , if the y-intercept is positive, then

• A) there is a positive correlation between x and y.
• B) if x is increased, y must also increase.
• C) if y is increased, x must also increase.
• D) the estimated regression line intercepts the positive y-axis.

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Definitions:

Straightness

The measure of how closely a line or feature aligns with a true straight line, often evaluated to ensure precision in manufactured parts.

Circularity

The degree to which a form or surface approaches a perfect circle, often a crucial factor in precision engineering.

Angularity

A condition of having a specified angle or orientation in relation to a datum or reference plane, used in precision manufacturing and machining.

Circularity

A geometric tolerance that limits the amount of variation from a perfect circle, often applied to cylindrical parts to ensure they rotate or fit smoothly.