Re: [R] Test to determine if there is a difference between two means

Inline below. Cheers, Bert Gunter Genentech Nonclinical Biostatistics (650) 467-7374 "Data is not information. Information is not knowledge. And knowledge is certainly not wisdom." H. Gilbert Welch On Tue, Dec 24, 2013 at 7:38 AM, wesley bell wrote: > Hi, > I have a data set where there ar

[R] Test to determine if there is a difference between two means

Hi, I have a data set where there are 20 experiments which each ran for 10 minutes. In each experiment an insect had a choice to spend time in one of two chambers. Each experiment therefore has number of seconds spent in each chamber. I want to know whether there is a difference in the mean time