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Author Question: Suppose the estimated regression line for predicting the high temperature of the day from the ... (Read 183 times)

Mimi

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on: Jun 24, 2018

  Suppose the estimated regression line for predicting the high temperature of the day from the nighttime low temperature is y = 12 + 1.2x. What is the value for the residual when the nighttime low is 45 if the observed daytime high temperature is 70?
 

  a.-4
  b.4
  c.66
  d.25

Question 2


  What does the hypothesis H0: imply?
 

  a.It implies that the regression line does not have a y-intercept.
  b.It implies that x is necessary for predicting y.
  c.It implies that x has no value in predicting y.
  d.It implies that y is of no use in predicting x.


mcarey591

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

correct: b

Answer to Question 2

correct: c


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