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Home Q & A Board Science-Related Homework Help Psychology
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Ebridges85 Ebridges85
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6 years ago
A normal distribution has a mean of  = 40 with  = 10. What proportion of the scores in this distribution are greater than X = 55?
 
  A) 0.3085
  B) 0.6915
  C) 0.0668
  D) 0.9332

Question 2

A two-factor research study has two levels of factor A and three levels of factor B with n = 8 participants in each treatment condition. For this study, what is the value for dfbetween treatments?
 
  A) 3
  B) 4
  C) 5
  D) 6

Question 3

What z-score values form the boundaries for the middle 60 of a normal distribution?
 
  A) z = +0.25 and z = -0.25
  B) z = +0.39 and z = -0.39
  C) z = +0.52 and z = -0.52
  D) z = +0.84 and z = -0.84

Question 4

The results of a two-factor analysis of variance produce df = 2, 36 for the F-ratio for factor A and df = 2, 36 for the F-ratio for factor B. How many participants are in each of the treatment conditions?
 
  A) 4
  B) 5
  C) 6
  D) 10

Question 5

What z-score value separates the top 70 of a normal distribution from the bottom 30?
 
  A) z = 0.52
  B) z = 0.84
  C) z = -0.52
  D) z = -0.84
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AllisonHope3AllisonHope3
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6 years ago
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Ebridges85 Author
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#2
6 years ago
All correct!
wrote...
#3
6 years ago
Happy to help
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