1. Why is a z score a standard score? Why can standard scores be used to compare scores from different distributions?
2. For the following set of scores, fill in the cells. The mean is 70 and the standard deviation is 8.
|
Raw score
|
Z score
|
|
68.0
|
?
|
|
?
|
-1.6
|
|
82.0
|
?
|
|
?
|
1.8
|
|
69.0
|
?
|
|
?
|
-0.5
|
|
85.0
|
?
|
|
?
|
1.7
|
|
72.0
|
?
|