The Following Is Part of the Results of a Regression $\alpha$

question 21

Essay

The following is part of the results of a regression analysis involving sales (Y in millions of dollars), advertising expenditures (X₁ in thousands of dollars), and number of salespeople (X₂) for a corporation. The regression was performed on a sample of 10 observations.
a.If the company uses $40,000 in advertisement and has 30 salespersons, what are the expected sales? Give your answer in dollars.
b.At $\alpha$ = 0.05, test for the significance of the coefficient of advertising.
c.At $\alpha$ = 0.05, test for the significance of the coefficient of the number of salespeople.

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Definitions:

Self-Theories

The beliefs that individuals hold about their abilities, potential, and identity, which can shape their motivation and behavior.

Central Component

is a fundamental element or core part of a system, theory, or structure.

Erik Erikson's Theory

A psychoanalytic theory that describes eight stages of human development, each characterized by a specific psychological conflict that contributes to a person's growth.

Comfortable

A state of physical ease and freedom from pain or constraint, as well as providing a sense of psychological ease and contentment.