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Author Question: If the sum of squares due to regression (SSR) is 60, which of the following must be true? a. The ... (Read 61 times)

SAVANNAHHOOPER23

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on: Jun 24, 2018
If the sum of squares due to regression (SSR) is 60, which of the following must be true?
 a. The coefficient of correlation is 0.9.
  b. The total sum of squares (SST) is at least 60.
  c. The y-intercept is positive.
  d. The slope, b, is positive.
  e. The coefficient of determination is 0.81.

Question 2

If all the points in a scatter diagram lie on the least squares regression line, then the coefficient of correlation:
 a. must be 1.0.
  b. must be -1.0.
  c. must be either 1.0 or -1.0.
  d. must be 0.


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tofugiraffe

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Reply #1 on: Jun 24, 2018
Answer to Question 1

B

Answer to Question 2

C


SAVANNAHHOOPER23

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  • Posts: 542
Reply 2 on: Jun 24, 2018
Thanks for the timely response, appreciate it

jomama

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  • Posts: 346
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

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