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Statistics

Posted on 2013-11-26
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The attached file has 2 columns: column A has a list of jobs and column B has time information. I also added column C to show approx. how many hours it takes to run a job.

I need to figure out processing time for 50% of the jobs and 95% of the jobs.

thanks!!
Statistics.xlsx
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Question by:Ladkisson
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Expert Comment

by:barry houdini
ID: 39678514
Not sure what you mean. If you want a time which would be longer than 95% of the jobs use PERCENTILE function, e.g.

=PERCENTILE(C2:C75,95%)

and so the total time for all jobs under that threshold would be

=SUMIF(C2:C75,"<="&PERCENTILE(C2:C75,95%))

change to 50% for your other query

regards, barry
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Author Comment

by:Ladkisson
ID: 39678634
What I am trying to get should look like this (it's an example):

50% jobs were done within 1.03 days,
95% jobs were done within 2.28 days.
1.03 and 2.28 is what I am trying to figure out.  Does make sense? Ignore column C, it is extra.

thanks!!
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Accepted Solution

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barry houdini earned 500 total points
ID: 39678659
OK, then I think you just want Percentile applied to column B like this

=PERCENTILE(B2:B75,50%)

and

=PERCENTILE(B2:B75,95%)

that should give you 1 and 2.775 respectively

regards, barry
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Author Closing Comment

by:Ladkisson
ID: 39678691
:):):)

thank you!!
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