Question

The students in my class watch less than 2 hours television at night. how can I decide what data to collect to test this statement, How can I design a suitable data collection instrument?

Answer 1

For this case we need to select a sample of students from the class

We can ask to each student how much time spend on average watching tv at night

From the results we can take the average and the standard deviation and we can use a t-test to test the statement