Hi,

A Math test has a mean of 53 and standard deviation of 16.0. 

Find the corresponding z scores for:

I. a test score of 19    z = (19-53)/16 = -34/16 =  - 2.125   ouch!

II. a test score of 70   z = (70-53)/16 =  17/16 = 1.0625   much better 

Important to Understand z -values as they relate to the Standard Normal curve:

Below:  z = 0, z = ± 1, z= ±2 , z= ±3 are plotted.  

Note: z = 0 (x value the mean) 50% of the area under the curve is to the left and 50%  to the right



 

RELATED QUESTIONS

. A Math test has a mean of 36 and standard deviation of 11.0. Find the corresponding z... (answered by robertb)

A Math test has a mean of 49 and standard deviation of 10.0. Find the corresponding z... (answered by robertb)

A Math test has a mean of 39 and standard deviation of 10.0. Find the corresponding z... (answered by moshiz08)

A Math test has a mean of 35 and standard deviation of 18.0. Find the corresponding z... (answered by stanbon)

 A Math test has a mean of 40 and standard deviation of 10.0. Find the corresponding z... (answered by jim_thompson5910)

 
A Math test has a mean of 43 and standard deviation of 17.0. Find the corresponding z... (answered by jim_thompson5910)

Math test has a mean of 41 and standard deviation of 5.0. Find the corresponding z scores  (answered by stanbon)

 Math test has a mean of 51 and standard deviation of 5.0. Find the corresponding z... (answered by MathLover1)

An aptitude test has a mean of 184 and a standard deviation of 17. find the corresponding  (answered by Fombitz)