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47. Which of the following are assumptions for the ANOVA procedure? (I) Independent subjects (II) Sample...

47. Which of the following are assumptions for the ANOVA procedure?
(I) Independent subjects
(II) Sample size greater than 30
(III) Equal variances
(IV) Normality
: *
(A) I, II, and III only
(B) II and III only
(C) II, III, and IV only
(D) I, II, III, and IV
(E) I, III, and IV only

Questions 48-50: You are conducting a randomized block design, testing a new type of medicine that’s supposed to lower cholesterol, with the following partial summary:
Source   SS    DF
Medicine    5.20    4
Block    ____    __
Error    0.54    6
Total    12.91    19


48. What was the total sample size?: *
(A) 4
(B) 6
(C) 9
(D) 20

49. Find the block sum of squares.: *
(A) 1.17
(B) 1.73
(C) 7.17
(D) 7.71

50. How many blocks were included in the study?: *
(A) 4
(B) 5
(C) 7
(D) 10

math   Statistics-And-Probability   
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