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Author Question: In an analysis of variance with a between-groups population variance estimate of 30 and a ... (Read 142 times)

sjones

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on: Jun 20, 2018
In an analysis of variance with a between-groups population variance estimate of 30 and a within-groups estimate of 25, the F ratio is
 
  A) 25 / (3025) = 5.00
  B) (3025) /30 = 0.17
  C) 25/30 = 0.83
  D) 30/25 = 1.20

Question 2

Ann conducts a study, and finds that the estimated population variances for the groups are 12.8, 16.3, 15.1, and 19.9. What is the within-groups estimate of the population variance?
 
  A) (12.82 + 16.32 + 15.12 + 19.92) / (4  1) = 351.18.
  B) (12.82 + 16.32 + 15.12 + 19.92) / 4 = 263.39.
  C) (12.8 + 16.3 + 15.1 + 19.9) / (4  1) = 21.37.
  D) (12.8 + 16.3 + 15.1 + 19.9) / 4 = 16.03.


kishoreddi

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Reply #1 on: Jun 20, 2018
Answer to Question 1

D

Answer to Question 2

D


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