chi-squared

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

chi-squared

Postby mark lavender » Thu Jun 06, 2013 11:32 am

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

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

Re: chi-squared

Postby Jason O' Mahoney » Thu Jun 06, 2013 4:14 pm

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

Postby mark lavender » Sat Jun 08, 2013 10:09 am

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

Not sure of the direction of them hypothesis atm

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

Re: chi-squared

Postby Jason O' Mahoney » Sun Jun 09, 2013 9:22 am

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

Postby mark lavender » Mon Jun 10, 2013 11:36 am

Many thanks Jason your a great help


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