Deck 16: Understanding Relationships Numerical

Question 1

The general form of a probabilistic model is y = deterministic function of x+ random deviation.

Answer 1

True

Question 2

In the simple linear regression model, the value of depends on thevalue of x.

Answer 2

False

Question 3

Either residuals or standardized residuals can be used when checkingassumptions associated with the linear model.

Answer 3

True

Question 4

A residual plot with spread increasing from left to right suggests that thevariance of y is not the same at each x value.

Question 5

The degrees of freedom associated with the estimated standard deviation,s_e , is n - 1.

Question 6

The mean value of the statistic b is ?.

Question 7

The simple linear regression model is a deterministic model.

Question 8

Question 9

A deterministic relationship between variables x and y is one in which thevalue of y is completely determined by the value of x.

Question 10

What are the four "Basic Assumptions" of the simple linear regression model?

Question 11

In the simple linear regression model, the error distribution is assumed tobe a t distribution.

Question 12

The estimated standard deviation, s_e , can be thought of as a typicaldeviation from the least squares regression line.