Confusion between Z table and T Table

nidhi.arora0806
Posts: 2
Joined: Tue Feb 23, 2016 4:55 am

Confusion between Z table and T Table

Postby nidhi.arora0806 » Thu Mar 24, 2016 2:01 pm

How to decide , which table should I use for Hypothsis Testing ? Z table or T table.

edupristine
Finance Junkie
Posts: 722
Joined: Wed Apr 09, 2014 6:28 am

Re: Confusion between Z table and T Table

Postby edupristine » Fri Mar 25, 2016 6:14 am

Hi Nidhi

If you know the population standard deviation and the sample size is above 30 then you can use Z-Table.
And If you don't know the population standard deviation & sample size is also not above 30 then you can use T-Table.


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