If you have a new account but are having problems posting or verifying your account, please email us on hello@boards.ie for help. Thanks :)

Hello all! Please ensure that you are posting a new thread or question in the appropriate forum. The Feedback forum is overwhelmed with questions that are having to be moved elsewhere. If you need help to verify your account contact hello@boards.ie

Hi there,
There is an issue with role permissions that is being worked on at the moment.
If you are having trouble with access or permissions on regional forums please post here to get access: https://www.boards.ie/discussion/2058365403/you-do-not-have-permission-for-that#latest

Statistics Population Standard Deviation

lauz94 · 2013-12-19 14:37:08

I am currently going over college exam papers and one of the questions asks if 'we can assume that population standard deviations are equal?' in the context of the question asked. The question gives information taken from two independent SRS' of males and females, stating sample size, mean and sample standard deviation. I…

19-12-2013 2:37pm

#1

lauz94

Registered Users, Registered Users 2 Posts: 146 ✭✭

Join Date: June 2012

Posts: 124

I am currently going over college exam papers and one of the questions asks if 'we can assume that population standard deviations are equal?' in the context of the question asked. The question gives information taken from two independent SRS' of males and females, stating sample size, mean and sample standard deviation. I am just wondering how do we go about solving this, is an F-test used even though we are not dealing with population variances?

0

Comments

#2 19-12-2013 11:01pm

king_of_inismac

Registered Users, Registered Users 2 Posts: 1,368 ✭✭✭

Join Date: March 2002

Posts: 1038

Isnt the population SD = 2*SE/SQRT(N)

So if the standard error is similar for both and the same size is similar, then you could say there's evidence suggesting their population SD would be similar.

0