Re: getting the confidence interval

2018-10-12 Thread Alan Mead
I think John is saying that in SPSS/PSPP you need to use a statistical function to generate statistical results like a CI. For example, T-TEST will produce a 95% CI for the mean difference in independent-samples t-tests. Other routines may provide other confidence intervals. But maybe you want to

Re: getting the confidence interval

2018-10-12 Thread Mark Hancock
I unfortunately don't know enough about PSPP syntax to suggest how to do this, but a CI is *not* always associated with a hypothesis and can be calculated from just a mean and SD (and a cumulative distribution function, which is typically the normal one). Typically the formula is something like: m

Re: getting the confidence interval

2018-10-12 Thread John Darrington
The confidence interval is a concept associated with a hypothesis. If it's the confidence interval on the test for a mean value, typically you would get that by using a T-Test. On Fri, Oct 12, 2018 at 10:40:22AM +0200, Werner LEMBERG wrote: Folks, I would like to get

getting the confidence interval

2018-10-12 Thread Werner LEMBERG
Folks, I would like to get a 95% confidence interval so that I could use it in AGGREGATE, e.g., AGGREGATE OUTFILE * MODE ADDVARIABLES /BREAK=... /Mean = mean(V) /CI = ci(V, 0.95) What must I do to get the result of my hypothetical `ci' function? I'm a PSPP novice, so maybe there