Anyway, thanks for all your response. These two sets of data are similar.
let's assume them are obtained from two experimental setups but at
the situation, so they are more similar but not the same because measure
error may be involved. I hope I can chose a set of data with a better
normal feature mentioned in my previous email.

Sorry about the caused misinterpretation.

Thank you!

David
2013/12/16 Rolf Turner <r.turner@auckland.ac.nz>

> On 16/12/13 20:59, Jeff Newmiller wrote:
>
>         <SNIP>
>
> This is not a statistics theory forum, but posting a solution to this
>> nonsensical problem would be irresponsible.
>>
>
> Fortune?
>
>     cheers,
>
>     Rolf
>
>
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