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Author Question: Suppose a least squares regression was performed on two quantitative variables. Given the summary ... (Read 120 times)

future617RT

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on: Jun 24, 2018

  Suppose a least squares regression was performed on two quantitative variables. Given the summary statistics below, what is the equation for the line of best fit? SSxx = 2000, SSxy = 800, yi = 500, xi = 1600, n = 40
 

  a.
  b.The least squares regression line cannot be determined from the information given.
  c.
  d.

Question 2


  Which, if any, of the following x values should not be used to a make a prediction with the regression line shown in the Minitab output below?
  a.x = 1.8
  b.x = 4
  c.x = 3.1
  d.x = 2
 


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cclemon1

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

correct: a

Answer to Question 2

correct: b


future617RT

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Reply 2 on: Jun 24, 2018
Wow, this really help

tkempin

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

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