You Select 15 People at Random from a Population of 10,000

Short Answer

You select 15 people at random from a population of 10,000 and ask them how many movies they have rented in the past month.Their responses are:
4 0 6 0 8 3 7 6 5 0 1 4 2 9 5
You know that the mean number of movies rented in the past month by the population is 5.0.Assuming that you made no non-sampling errors,what is the sampling error for the mean?