Deck 13: Simple Linear Regression and Correlation: Inferential Methods

Question 1

In the simple linear regression model, the point estimate and the point prediction are identical for a particular value of x.

Answer 1

True

Question 2

Answer 2

False

Question 3

In the simple linear regression model, aandbare fixed numbers that are usually unknown.

Answer 3

True

Question 4

The mean value of the statistic b isb .

Question 5

Question 6

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

Question 7

The simple linear regression model is a deterministic model.

Question 8

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

Question 9

Question 10

Question 11

In the simple linear regression model, the randomness of e implies that y itself is subject to uncertainty.

Question 12

Question 13

Question 14

Question 15

Question 16

Question 17

The population correlationris always between 0 and 1.

Question 18

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

Question 19

Question 20

In the simple linear regression, the standard deviation of y is the same as the standard deviation of the random deviation e.

Question 21

Question 22

A residual is a deviation from the population regression line.