The primary tool for determining whether the assumptions made ...

[roselinechinyere27m]

The primary tool for determining whether the assumptions made about the regression model are appropriate is
 a. interval estimation.
 b. significance testing.
 c. least squares regression.
  d. residual analysis.

Question 2

Regression analysis was applied between sales data (y in 1000s) and advertising data (x in 100s) and the following information was obtained. y = 12 + 1.8x n = 17 SSR = 225 SSE = 75 sb1 = .2683 The critical t value for testing the significance of the slope, at a .05 level of significance, is
 a. 1.753.
  b. 2.131.
  c. 1.746.
  d. 2.120.

[macmac]

Answer to Question 1

d

Answer to Question 2

b

[roselinechinyere27m]

Gracias!

[gcook]

Excellent