What distribution does the test statistic have for testing ...

[TVarnum]

  What distribution does the test statistic have for testing whether or not the reduced model is correct using H₀: versus H_a: at least one among is not 0?
 

  a.F distribution with df_numerator = k - l, df_denominator = n - (k + 1)
  b.chi-squared distribution
  c.t distribution with df = n - (k + 1)
  d.t distribution with df = n - 2

Question 2

  Using the Minitab output below, what is a 90 confidence interval for in the multiple regression model shown when n = 81?
 
 

  a.(3178, 8810)
  b.(4.40, 6.18)
  c.(-63,878, -35,506)
  d.(2370, 9618)

[vickybb89]

Answer to Question 1

correct: a

Answer to Question 2

correct: d