the values i got 
condition 1 49.56
condition 2 43.31
condition 3 50.85
condition 4 55.09

[download]
the values excel gave 
condition 1 50.73
condition 2 44.33
condition 3 52.05
condition 4 56.39

[download]
the raw data 
cond1   cond2   cond3   cond4
397     360.5   372     324
322     318.5   354     305.5
350     356     358     364
346     316.5   311     320
338     330     336.5   327.5
324     296.5   297     288.5
461     444     485     432.5
477     474     461     434
432     416.5   407.5   447
373     355     365     369
386     320     342     315
412     401.5   428     397.5
475     363.5   494     515
360.5   332     343.5   339
384     363     372     405
324     324     324     330
424     388     379.5   396
319     312     345     319
454.5   344     389     345
412     372     384     381.5
387     347.5   363     340
370     338     346     317

[download]

In reply to Re: standard deviation accuracy question by Anonymous Monk
in thread standard deviation accuracy question by Anonymous Monk

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.