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. A Type I error would occur if Entertainment Software Association concludes that the average age of gamers is __________________________________________.
A)greater than 30 years when, in reality, the average age is 30 years or less
B)30 years or less when, in reality, the average age is more than 30 years
C)not equal to 30 years when, in reality, the average age is equal to 30 years
D)equal to 30 years when, in reality, the average age is not equal to 30 years

Question

Quizplus · Accepted Answer

A Type I error occurs when the null hypothesis is incorrectly rejected. In this context, the null hypothesis likely posits that the average age of gamers is 30 years or less. Rejecting this in favor of the alternative hypothesis (that the average age is greater than 30 years) when it is actually true constitutes a Type I error.

Entertainment Software Association Would Like to Test If the Average