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 spent in each chamber.

I was going to do a t-test but was advised that there was a better way, something about introducing random numbers? I was hoping someone could help?

Thanks
Wes
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