A regression model relating a dependent variable, y, with one ...

[vinney12]

A regression model relating a dependent variable, y, with one independent variable, x1, resulted in an SSE of 400 . Another regression model with the same dependent variable, y, and two independent variables, x1 (used in the first model) and x2 (added in the second model), resulted in an SSE of 320 . At  = .05, determine if x2 contributed significantly to the model. The sample size for both models was 20.

Question 2

The forward selection procedure starts with _____ independent variable(s) in the multiple regression model.
 a. no
 b. one
  c. two
  d. all

[Sophiapenny]

Answer to Question 1

. F = 4.25 < critical F = 4.45; do not reject H0 that stated x2 did not contribute to the model significantly.

Answer to Question 2

a

[vinney12]

TYSM

[Perkypinki]

Excellent