1. ## Statistics: Significant difference???

Hi everybody

id be mucho appreciative if u cud help me out with this question, it was on my statistics college exam which i failed and counted for 10% of it. no doubt it'll be chicken feed to you guys but im pretty much retarded when it comes to this subject!

here it is:

Of 200 students taking their final exams in business studies, 100 were females, 100 were males; 84 females passed and 76 males passed. Are the pass rates for the two genders significantly different?

http://www.talkstats.com/showpost.php?p=13562

here p1^ = .84 (female passed prop)
& p2^ = .76

I assume alpha =0.05.
And if z value is greater than 1.96 or less than -1.96 then you can conclude that
&#37; pass of two genders significantly different.
Otherwise we can conclude that pass rates are same.

3. ah Vinux, you're some boyo! thanks a million!

4. vinux also, theres a second part to the question where it breaks down the results into grades: H1, H2.1, H2.2, Pass and Fail. it gives the amount of females and males who achieved each grade and asks to see if theres a significant difference between females and males with respect to the grades obtained.

does this mean that i just use the same method again for each grade or is there a formula which incorporates all of the grades into one. it just seems tedious doing a test for 5 different grades and the marks going for the question is 13 whereas the previous part 1 is 10 but this would have a lot more work to it. any suggestions?

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