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A Math test has a mean of 39 and standard deviation of 18.0. Find the corresponding z scores for:
I. a test score of 31
II. a test score of 100
Please show all of your work
 one year ago
 one year ago
A Math test has a mean of 39 and standard deviation of 18.0. Find the corresponding z scores for: I. a test score of 31 II. a test score of 100 Please show all of your work
 one year ago
 one year ago

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sirm3dBest ResponseYou've already chosen the best response.1
the z score formula is \[z=\frac{ obsv  mean }{ std.dev. }\] i'll leave the computation to you. post your answers here.
 one year ago

DarkendSinz30Best ResponseYou've already chosen the best response.0
z=3139/18.0 correct?
 one year ago

DarkendSinz30Best ResponseYou've already chosen the best response.0
z=10039/18.0 = 3.4
 one year ago

DarkendSinz30Best ResponseYou've already chosen the best response.0
z=3139/18.0=.44
 one year ago

DarkendSinz30Best ResponseYou've already chosen the best response.0
is this right so far?
 one year ago

sirm3dBest ResponseYou've already chosen the best response.1
there is a negative sign
 one year ago

sirm3dBest ResponseYou've already chosen the best response.1
I. z = 0.44 II. z = 3.4
 one year ago

DarkendSinz30Best ResponseYou've already chosen the best response.0
okay so I was on the right track then just forgot the negative sign
 one year ago

sirm3dBest ResponseYou've already chosen the best response.1
just be careful with the signs.
 one year ago

DarkendSinz30Best ResponseYou've already chosen the best response.0
Thank you so much for the help.
 one year ago
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