Entertainment Software Association would like to test if the standard deviation for the age of "gamers" (those that routinely play video games)is equal to 6.0 years. The standard deviation for the age from a random sample of 24 gamers is 3.8 years. The degrees of freedom for this hypothesis test would be ________.
A)24
B)21
C)23
D)25

Question

Quizplus · Accepted Answer

The degrees of freedom for this hypothesis test, which involves the standard deviation and is based on a sample, is calculated as the sample size minus one. Therefore, for a sample size of 24, the degrees of freedom would be 24 - 1 = 23.

Entertainment Software Association Would Like to Test If the Standard