HP Forum Archive 18

[ Return to Index | Top of Index ]

32s - statistics Message #1 Posted by Frank Rottgardt on 20 May 2008, 6:19 p.m. the 32s only gives direct access to one kind of standard deviation. The manual tells us "s" is calculated, and I think this must be the "estimated" standard deviation based on a sample (not on the population. Can anybody confirm this?

Re: 32s - statistics Message #2 Posted by Jeff Kearns on 20 May 2008, 6:39 p.m., in response to message #1 by Frank Rottgardt I can confirm that the 32s standard deviation 's' is a Sample Standard Deviation and not a Population Standard Deviation. The 32sii offers both. -- JK

Re: 32s - statistics Message #3 Posted by Walter B on 20 May 2008, 6:41 p.m., in response to message #1 by Frank Rottgardt You are definitively right for the 32S. The vast majority of scientific calcs calculate the sample standard deviation, some also the population s.d., none (AFAIK) the standard error (i.e. the s.d. of the mean value).

Re: 32s - statistics Message #4 Posted by Thomas Klemm on 22 May 2008, 5:29 a.m., in response to message #3 by Walter B Quote: The vast majority of scientific calcs calculate the sample standard deviation A trick to calculate the population standard deviation would be to calculate the mean and add that value to the data before calculating the sample standard deviation. Just to make sure we're talking about the same things: sample standard deviation: population standard deviation:

[ Return to Index | Top of Index ]

Go back to the main exhibit hall