A random sample question

Statistics
Tutor: None Selected Time limit: 1 Day

A random sample of 60 items is taken producing a sample mean of 25 and a sample standard deviation of 12.25. What is the value for 95% confidence interval to estimate the population mean?

 

Oct 23rd, 2015

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

We have been given

  1. Mean,u=25

Standard deviation,d=12.25

The critical value for the 95% confidence interval is,Z= 1.96

The confidence interval is given by the formula,

Lower limit=21.9

Upper limit=28.1



Please let me know if you need any clarification. I'm always happy to answer your questions.
Oct 23rd, 2015

Did you know? You can earn $20 for every friend you invite to Studypool!
Click here to
Refer a Friend
...
Oct 23rd, 2015
...
Oct 23rd, 2015
Dec 8th, 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