How did they get 11.7 from 60 and 7?

Algebra
Tutor: None Selected Time limit: 1 Day

I am working on zcrit and margin of error. I calculated that the zcrit was 1.96. But i couldn't figure out the p-hat of the margin of error. The actual question was this; An inspector randomly chose 60 envelopes, then found that 7 of them had improper postage. How did the p-hat get to 11.7, from 60 and 7?

Oct 7th, 2015

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

P-hat is the sample proportion. Since you have 7 improper out of 60, that tells you that p-hat = 7/60 = 11.7


Please let me know if you need any clarification. Always glad to help!
Oct 7th, 2015

I guess i just divided it the wrong way, cause i got 8.2. Thank you very much

Oct 7th, 2015

Studypool's Notebank makes it easy to buy and sell old notes, study guides, reviews, etc.
Click to visit
The Notebank
...
Oct 7th, 2015
...
Oct 7th, 2015
Feb 23rd, 2017
check_circle
Mark as Final Answer
check_circle
Unmark as Final Answer
check_circle
Final Answer

Secure Information

Content will be erased after question is completed.

check_circle
Final Answer