I have a z-score statistics question?

Statistics
Tutor: None Selected Time limit: 1 Day

Oct 28th, 2015

Thank you for the opportunity to help you with your question!

According to the standard normal distribution chart, 70 percent corresponds to a Z value of 0.52

Therefore,

Z = (171 - 157) / SD = 0.52   where SD is the standard deviation

14 / SD = 0.525

SD = 14 / 0.525

SD = 26.67

Please let me know if you need any clarification. I'm always happy to answer your questions.
Oct 28th, 2015

How did you get a z value of 0.52?

Oct 28th, 2015

nvm i got it THANK YOU SO MUCH FOR THE HELP 

Oct 28th, 2015

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