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should i use Mann-Whitney Test?If yes,then how? If no,what should i use??

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RileyQ
 
Reply Mon 8 Oct, 2012 03:06 am
I wanted to compare two different groups of data, for example : the hardness value(numerical data) between material A & material B? just wondering which test i should use... Thanks!
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Type: Question • Score: 0 • Views: 747 • Replies: 1
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JPB
 
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Reply Mon 8 Oct, 2012 05:29 am
@RileyQ,
Is the hardness value a continuous variable? How much data do you have? If you have a sufficient sample size (n>=20) you can use a two sample t-test if it's reasonable to assume the data are normally distributed.
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