Inverse of Standard Normal Distributions

[eutas1]

Hello!

I am confused on how to get the correct answer for standard deviation;
Please refer to attachment A for the question, and attachment B for my working out issue and explanation.

Thank you!

 

[Dr.Peterson]

Hello!

I am confused on how to get the correct answer for standard deviation;
Please refer to attachment A for the question, and attachment B for my working out issue and explanation.

Thank you!

Check your arithmetic. 160 - 165 is not 5.

Otherwise, your work is excellent!

 

[eutas1]

Check your arithmetic. 160 - 165 is not 5.

Otherwise, your work is excellent!

Oh my... that's embarrassing! Thank you very much, I am glad it was just a simple error rather than a missing concept or something like that.
Thank you!!!