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Nick Cox
Nick Cox
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chi square teasttests & graphing

iI was wondering what the appropriate test would be for comparing the results of 2two chi square-square tests.

For example, if i: I have one experiment (#1) where iI determined if there was a significant difference in the ability of rats to detect the smell of an odourodor (odor 1) compared towith a control (yes/no) using chi squared-square. I then repeated the experiment but using a different odor (odor 2 vs. Controlcontrol).

Now iI want to compare the results of those to chi 2two tests statistically (results of experiment 1, odor 1 vs. Resultsresults of experiment 2, odor 2), what test would iI use? 

I was heard mann whitny uMann-Whitney $U$ might be good, but iI need to justify why this test would be better than other test for this comparison.

Also, how would iI graph the data with error bars, or are error bars not used for chi 2-square?

Thanks for any help!

chi square teast & graphing

i was wondering what the appropriate test would be for comparing the results of 2 chi square tests.

For example, if i have one experiment (#1) where i determined if there was a significant difference in the ability of rats to detect the smell of an odour (odor 1) compared to a control (yes/no) using chi squared. I then repeated the experiment but using a different odor (odor 2 vs. Control).

Now i want to compare the results of those to chi 2 tests statistically (results of experiment 1, odor 1 vs. Results of experiment 2, odor 2), what test would i use? I was heard mann whitny u might be good, but i need to justify why this test would be better than other test for this comparison.

Also, how would i graph the data with error bars, or are error bars not used for chi 2?

Thanks for any help!

chi square tests & graphing

I was wondering what the appropriate test would be for comparing the results of two chi-square tests.

For example: I have one experiment where I determined if there was a significant difference in the ability of rats to detect the smell of an odor (odor 1) compared with a control (yes/no) using chi-square. I then repeated the experiment but using a different odor (odor 2 vs. control).

Now I want to compare the results of those two tests statistically (results of experiment 1, odor 1 vs. results of experiment 2, odor 2), what test would I use? 

I heard Mann-Whitney $U$ might be good, but I need to justify why this test would be better than other test for this comparison.

Also, how would I graph the data with error bars, or are error bars not used for chi-square?

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stats newbie
stats newbie
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chi square teast & graphing

i was wondering what the appropriate test would be for comparing the results of 2 chi square tests.

For example, if i have one experiment (#1) where i determined if there was a significant difference in the ability of rats to detect the smell of an odour (odor 1) compared to a control (yes/no) using chi squared. I then repeated the experiment but using a different odor (odor 2 vs. Control).

Now i want to compare the results of those to chi 2 tests statistically (results of experiment 1, odor 1 vs. Results of experiment 2, odor 2), what test would i use? I was heard mann whitny u might be good, but i need to justify why this test would be better than other test for this comparison.

Also, how would i graph the data with error bars, or are error bars not used for chi 2?

Thanks for any help!