Complete the following hypothesis test where σ is unknown

Statistics
Tutor: None Selected Time limit: 1 Day

USA Today reported that the state with the longest mean life span is Hawaii, where the population mean life span is 77 years.  A random sample of 20 obituary notices in the Honolulu Advertizer had a mean of  = 71.4 years and a standard deviation, s = 20.65 yrs.  Assuming that life span in Honolulu is approximately normally distributed , does this information indicate that the population life span for Honolulu residents is less than 77 years?  Use a 5% level of significance.

Oct 18th, 2015

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

statistics.docx

Please find the explanation and working in the attached document.

Please let me know if you need any clarification. I'm always happy to answer your questions.
Oct 18th, 2015

Are you studying on the go? Check out our FREE app and post questions on the fly!
Download on the
App Store
...
Oct 18th, 2015
...
Oct 18th, 2015
Dec 2nd, 2016
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