Chi-squared help please?

My assignment is based on habitat and i have data regarding the type and diameter of each tree in 2 different sites....a part of my assignment asks me to "use a chi-sqaured test to test whether the tree species occur in similar proportions at the two sites"... but im really confused which chi- sqaured test i need to use and what date i need to use...

can anyone help pretty pretty pretty please?

thankyou :smile:

x

Hi there,

While you're waiting for an answer, did you know we have 300,000 study resources that could answer your question in TSR's Learn together section?

We have everything from Teacher Marked Essays to Mindmaps and Quizzes to help you with your work. Take a look around.

If you're stuck on how to get started, try creating some resources. It's free to do and can help breakdown tough topics into manageable chunks. Get creating now.

Thanks!

Not sure what all of this is about? Head here to find out more.

Reply 2

Joinedup

20

Original post by xxxamybxxx

My assignment is based on habitat and i have data regarding the type and diameter of each tree in 2 different sites....a part of my assignment asks me to "use a chi-sqaured test to test whether the tree species occur in similar proportions at the two sites"... but im really confused which chi- sqaured test i need to use and what date i need to use...

can anyone help pretty pretty pretty please?

thankyou :smile:

x

Id make h0 'the proportion of tree species A to tree species B is the same at both locations' and do a two tailed

Reply 3

Asklepios

19

Original post by xxxamybxxx

My assignment is based on habitat and i have data regarding the type and diameter of each tree in 2 different sites....a part of my assignment asks me to "use a chi-sqaured test to test whether the tree species occur in similar proportions at the two sites"... but im really confused which chi- sqaured test i need to use and what date i need to use...

can anyone help pretty pretty pretty please?

thankyou :smile:

x

Make a contingency table and then do a goodness of fit test - there should be plenty of info on this online of you google chi-squared contingency table. The chi-squared test is actually only a one-tailed test since you are squaring the difference between the observed and expected values.

Posted from TSR Mobile

Chi-squared help please?

Quick Reply

Related discussions

Latest

Trending

Trending

Articles for you