I did an exam, which the comment given was that my answers to two questions were too "short" or lacking… (I do not know what was lacking). I would like to learn and understand. As I remember I think I used something called an on line calculator for categoric values when I came to my answers.
The exam questions were:
Students representing two different geographical ares had a quiz test.
- group 1 had 36 right and 13 wrong
- group 2 had 29 right and 19 wrong
Is there a significant difference between these groups (p<0,05)?
What if the quiz result where like this:
- group 1 360 right, 130 wrong
- group 2 290 right, 190 wrong
Is there a significant difference between this groups (p<0,05)?
My answers were:
- Yes there is a significant difference
- No there is not a significant difference.
My questions to you are:
- Are my answers correct?
- And what is the proper way of showing how you get to this/ or correct answer (without using a calculator)?
Meaning, what are the steps I need to take to solve this kind of questions?
I am most grateful if anyone have time to explain this to me.