Statistical Test Calculator

Posts: 5
Joined: Tue Jan 23, 2018 9:28 pm

Statistical Test Calculator

Postby ahorton920 » Thu Feb 08, 2018 9:13 pm


I need help finding a t-test calculator where it will change the significance level from 0.05 to 0.025 (5% to 2.5%)

I've tried where they ask if its one or two tailed but it doesnt actually appear to change the significance level??!!


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Rebecca Smith
Posts: 233
Joined: Thu Mar 27, 2014 7:50 pm

Re: Statistical Test Calculator

Postby Rebecca Smith » Fri Feb 09, 2018 10:57 am

This one is fine - it will be built into the calculator to look up the correct critical value for the one or two tailed as specified by you
It is a little complex but p<0.025 will be used for a one tailed test to judge significance and reported on in the results - the level is halved because you are looking for a difference in one direction only
Hope this helps

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