what would be an example of a parameter? i'm confused. i'm given this problem:

How much time do undergraduate students at GMU spend each day reading and sending email? A survey was conducted by a graduate student asking students in the Johnson Center the above question. At the 0.10 significance level, can the students infer from these data that the mean amount of time spent by all GMU students reading and sending email daily differs from 90 minutes

Data missing.

A parameter is a measure on the total population, while a statistic is a measure on a portion of the population.