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Author Question: The primary tool for determining whether the assumptions made about the regression model are ... (Read 147 times)

roselinechinyere27m

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on: Aug 1, 2018
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.


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macmac

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Reply #1 on: Aug 1, 2018
Answer to Question 1

d

Answer to Question 2

b


roselinechinyere27m

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Reply 2 on: Aug 1, 2018
:D TYSM

nguyenhoanhat

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Reply 3 on: Yesterday
Gracias!

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