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DarkendSinz30
Group Title
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
 2 years ago
 2 years ago
DarkendSinz30 Group Title
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
 2 years ago
 2 years ago

This Question is Closed

sirm3d Group TitleBest 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.
 2 years ago

DarkendSinz30 Group TitleBest ResponseYou've already chosen the best response.0
what is obsv?
 2 years ago

DarkendSinz30 Group TitleBest ResponseYou've already chosen the best response.0
z=3139/18.0 correct?
 2 years ago

DarkendSinz30 Group TitleBest ResponseYou've already chosen the best response.0
z=10039/18.0 = 3.4
 2 years ago

DarkendSinz30 Group TitleBest ResponseYou've already chosen the best response.0
z=3139/18.0=.44
 2 years ago

DarkendSinz30 Group TitleBest ResponseYou've already chosen the best response.0
is this right so far?
 2 years ago

sirm3d Group TitleBest ResponseYou've already chosen the best response.1
there is a negative sign
 2 years ago

sirm3d Group TitleBest ResponseYou've already chosen the best response.1
I. z = 0.44 II. z = 3.4
 2 years ago

DarkendSinz30 Group TitleBest ResponseYou've already chosen the best response.0
okay so I was on the right track then just forgot the negative sign
 2 years ago

sirm3d Group TitleBest ResponseYou've already chosen the best response.1
just be careful with the signs.
 2 years ago

DarkendSinz30 Group TitleBest ResponseYou've already chosen the best response.0
Thank you so much for the help.
 2 years ago
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