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http://prntscr.com/n28ivr

 Mar 24, 2019
 #1
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a)

Boris knowledge test z score  = [ 57 -60 ] / 4.3 =  -.69   [ ≈ 24th percentile ] 

Boris aptitude test z score  =  [ 106 -110] / 7.1  = -.56 [ ≈  28th percentile ]

He did better on the aptitude test

 

b)

Callie knowledge test z score  =  [ 63 - 60] / 4.3 = .69    [ ≈ 75th percentile ]

Callie aptitude test z score  =  [ 114 - 110 ] / 7.1 =  .56  [ ≈  71st percentile]

She did better on the knowledge test

 

c) -0.93  =  [≈ 17th percentile ]

He still did the best on the aptitude test

 

 

cool cool cool

 Mar 24, 2019

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