A community for students.
Here's the question you clicked on:
 0 viewing
DarkendSinz30
 3 years 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
DarkendSinz30
 3 years 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

This Question is Closed

sirm3d
 3 years ago
Best ResponseYou've already chosen the best response.1the z score formula is \[z=\frac{ obsv  mean }{ std.dev. }\] i'll leave the computation to you. post your answers here.

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

DarkendSinz30
 3 years ago
Best ResponseYou've already chosen the best response.0z=10039/18.0 = 3.4

DarkendSinz30
 3 years ago
Best ResponseYou've already chosen the best response.0is this right so far?

sirm3d
 3 years ago
Best ResponseYou've already chosen the best response.1there is a negative sign

sirm3d
 3 years ago
Best ResponseYou've already chosen the best response.1I. z = 0.44 II. z = 3.4

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

sirm3d
 3 years ago
Best ResponseYou've already chosen the best response.1just be careful with the signs.

DarkendSinz30
 3 years ago
Best ResponseYou've already chosen the best response.0Thank you so much for the help.
Ask your own question
Sign UpFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.