chi-squared

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mark lavender
Posts: 14
Joined: Thu Jan 24, 2013 9:20 pm

chi-squared

Post by mark lavender »

Hi

Well I have completed my observation nominal data independent measures,

after putting the data into a chi-squared calculator

http://www.quantpsy.org/chisq/chisq.htm

I have a p-value of 0.55

So does this mean I reject the null hypothesis and accept the hypothesis ?

Iam struggling with this part so any help would be appreciated

Mark

Jason O' Mahoney
Head of Social Sciences
Posts: 227
Joined: Sat Feb 27, 2010 10:36 am

Re: chi-squared

Post by Jason O' Mahoney »

Hi,

Once you have your Observed value you then need to:

[*]identify your degrees of freedom
[*]identify the direction of your hypothesis
[*]identify your level of significance (this is usually 0.05)

Then once you have all of the above, you then go to the critical value table for the Chi Square

Your Observed Value must be EQUAL TO or GREATER THAN the critical value In the table

Hope that helps :D

mark lavender
Posts: 14
Joined: Thu Jan 24, 2013 9:20 pm

Re: chi-squared

Post by mark lavender »

Well i have three degrees of freedom and standard significance level of 0.05

Not sure of the direction of them hypothesis atm

Jason O' Mahoney
Head of Social Sciences
Posts: 227
Joined: Sat Feb 27, 2010 10:36 am

Re: chi-squared

Post by Jason O' Mahoney »

Hi,

Is it 1 tailed? (i.e you are stating the direction of the hypothesis)
Or is it 2 tailed (stating there is a difference but that you are not sure which way)

I suggest you have a chat with your tutor on this for more guidance :)

mark lavender
Posts: 14
Joined: Thu Jan 24, 2013 9:20 pm

Re: chi-squared

Post by mark lavender »

Many thanks Jason your a great help

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