Is this homework? We don't do homework on this list. You may also do better posting your question on stats.stackexchange.com or other statistical list, as this appears to be a statistics not an R question.
Cheers, -- Bert On Mon, Oct 29, 2012 at 6:12 AM, Tammy Ma <metal_lical...@live.com> wrote: > > Dear All, > > I have two samples as the following: > conjps<-c(9.41,10.45,10.78,10.73,11.11,11.12,11.59,11.04,11.63) > > ms<-c(4.11,5.10,5.70,6.46,6.04,6.16, 6.24,6.32,7.33) > > I want to test the change of sample is same to the another one. > conjps_ch<-c(1.04,0.33.....) > ms<-c(0.99,0.60,0.76....) > > > which test I should use, which conclusion can we drive based on the test? > > I used the following test: > > > •Test Equality > of Two Variances > > F > test to compare two variances > > > > data: > conjps and ms > > F = 0.5419, num df = 8, > denom df = 8, > p-value = 0.4045 > > alternative hypothesis: true ratio of > variances is not equal to 1 > > 95 percent confidence interval: > > 0.1222368 2.4024170 > > sample estimates: > > ratio of variances > > > 0.5419076 > > > > is it correct? which conclusion can I get based on this? > > > Thanks for help. > > Kind regards, > Tammy > > [[alternative HTML version deleted]] > > > ______________________________________________ > R-help@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. > -- Bert Gunter Genentech Nonclinical Biostatistics Internal Contact Info: Phone: 467-7374 Website: http://pharmadevelopment.roche.com/index/pdb/pdb-functional-groups/pdb-biostatistics/pdb-ncb-home.htm ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
