Mathematics

Question 1 (1 point)

 

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If you have a distribution of scores with a mean of 27 and a standard deviation of 3 for your raw scores, and you convert that distribution to z-scores, the new mean and standard deviation will be______________.

Question 1 options:

 
a) 0, 1

 

 
b) 27, 3

 

 
c) unable to determine without more information

 

Question 2 (1 point)

 

It is possible to know exactly where you stand on an exam by looking at your raw score.

Question 2 options:

  a) True     b) False  

Question 3 (1 point)

 

It is possible to know which students scored in the top 10% of the class of 100 by looking that the 10 highest scores.

Question 3 options:

  a) True     b) False  

Question 4 (1 point)

 

t-score differs from a z-score because the t-score is based on a sample whereas the z-score is based on the population.

Question 4 options:

  a) True     b) False  

Question 5 (1 point)

 

In a population if you have µ = 10, σ = 2, and your z-score is +1.5, what is the value of X?

Question 5 options:

 
a) -13

 

 
b) 20

 

 
c) 13

 

 
d) -20

 

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