You Have Performed a Linear Regression to Assess the Relationship

question 16

Essay

You have performed a linear regression to assess the relationship between CD4+ cell counts (y) and viral load (x). Plotting your residuals, you realize that there is a fan pattern. The residuals are clustered more tightly together around 0 for the small values of y-hat and become more spread out as you increase the values of y-hat. Provide the assumptions to the linear regression and provide at least one solution to fixing this problem.

---

Definitions:

Function Morphemes

The grammatical units in a language that express syntactic relationships between words in a sentence but do not typically carry lexical meaning themselves.

Prototype Theory

A cognitive theory which suggests that when people categorize objects or concepts, they match them against an internal "best example" or prototype of the category.

Folk Theory

A set of beliefs or assumptions that are widely held by the general public but not necessarily backed by scientific evidence.

Furniture

Objects typically found in homes or offices that are used to support human activities such as seating, sleeping, and storing items.