12 Entertainment Software Association would like to test if

12. Entertainment Software Association would like to test if the average age of \"gamers\" (those that
routinely play video games) is more than 30 years old. The correct hypothesis statement would be?

Solution

The parameter of interest is the average age of gamers who play video games.

AS the statement to be tested is whether their age is >30 years, set up hypotheses as

H0: mu = average age =30

Ha: mu = average age >30

Right tailed hypothesis test.