A Multiple Regression Model Has the Form $\hat { Y }$

question 81

Multiple Choice

A multiple regression model has the form $\hat { Y }$ = b₀ + b₁x₁ + b₂x₂.The coefficient b₁ is interpreted as the:

• A) estimated change in y per unit change in x₁.
• B) estimated change in y per unit change in x₁,holding x₂constant.
• C) estimated change in y per unit change in x₁,when x₁ and x₂ values are correlated.
• D) estimated change in y per unit change in x₂,holding x₁ constant.

Recognize conditions under which the normal distribution can be used for making confidence interval estimates.

Analyze how changes in significance level (α) affect the confidence interval.

Address the relationship between sample data characteristics (mean, standard deviation) and population parameters estimation.

Interpret confidence interval outcomes in context to the population parameter being estimated.