Qualification > Sciences

A question regarding t-test and chi-squared test

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idrees:
Hey, hope you all are doing fine.

Okay, so I know how to perform the two tests but the part I'm struggling with is interpreting the results of the t-test and the chi2.
The farthest I can go with my explanation is to state whether the result is significant or not. I know .. not so great. Well. the usual questions following the test, regardless of the context
(i) Significance of the t value using the critical value (wth is the critical value)
(ii) Explain the result in terms of probability table
(iii) reliability of result
(iv) ref. to standard deviation?

I am so clouded. could you help clear at least some of the doubts?
Thanks

MKh:
so is this from CIE or edexcel..i thnk CIE....well I take edexcel...v do not have to carry out the tests and interpretting results is a bit different in Edexcel...do u study in a school? If yes, ask ur teachers to help, buddy...gud luck....

Sue T:
actually its 4 both cie and edexcel - cuz my cie class got the notes 4 ths from the edexcel class - will take a while2 scan though... will upload asap

Master_Key:

--- Quote from: Sue T on May 07, 2011, 03:50:20 pm ---actually its 4 both cie and edexcel - cuz my cie class got the notes 4 ths from the edexcel class - will take a while2 scan though... will upload asap

--- End quote ---
If you have CIE A level Biology then switch on to the end of book before the answers. T-Test samples and explanation is given.

Sue T:
yes but some ppl (like me) have A2 Biology < ths txt book dsnt have that - anyways heres wat i said ill attach

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