Question

In trend analysis, when there is a non-linear trend with one major change in slope, use the:

A) Simple linear regression
B) Quadratic regression
C) Exponential regression
D) Power regression

Answer 1

Quadratic regression is the most appropriate regression model to use when there is a non-linear trend with one major change in slope in trend analysis.

Step-by-step explanation:

When there is a non-linear trend with one major change in slope in trend analysis, the most appropriate regression model to use is the Quadratic regression (Option B).

Quadratic regression is used when the relationship between the independent variable (x) and the dependent variable (y) can be represented by a quadratic equation of the form y = ax^2 + bx + c.

This model can capture the major change in slope and provide a better fit to the data compared to simple linear regression (Option A), exponential regression (Option C), or power regression (Option D).