27 minutes a day on the toilet on average?
I'm male, but I'd guess that my average is 5-15 minutes per day. I suppose females spend more time on the toilet, so that could bring the average up. After my in-depth analysis, 27 minutes seems a bit high, but perhaps it is fairly standard.
I guess it depends on the age of the subjects and the kind of toilet-related activities considered in the study.
And if,of course they have a gi disorder' and/or a squatte pottiy.