A Type I error is committed if we make: a. a correct decision ...

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A Type I error is committed if we make:
 a. a correct decision when the null hypothesis is false.
  b. a correct decision when the null hypothesis is true.
  c. an incorrect decision when the null hypothesis is false.
  d. an incorrect decision when the null hypothesis is true.

Question 2

In a first-order model with two predictors x1 and x2, an interaction term may be used when the relationship between the dependent variable y and the predictor variables is linear.
  Indicate whether the statement is true or false

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Answer to Question 1

D

Answer to Question 2

F