The true mean hours of sleep a night of college students in

The true mean hours of sleep a night of college students in the United States is 6.2 hours. Suppose you want to use a hypothesis test to determine whether the mean hours of sleep a night of BYU-Idaho students is higher than the national mean. Which of the following pairs of hypotheses is the most appropriate for addressing this question? H_o : mu = 6.2 qquad H_a : mu > 6.2 H_o : mu > 6.2 qquad H_a : mu = 6.2 H_o : mu = 6.2 qquad H_a : mu != 6.2 H_o : mu != 6.2 qquad H_a : mu = 6.2 H_o : mu = 6.2 qquad H_a : mu < 6.2 H_o : mu < 6.2 qquad H_a : mu = 6.2

Solution

The claim is \"mean hours of sleep a night of BYU-Idaho students is higher than the national mean\".

The claim must go to Ha, that is, u > 6.2.

Then, the hypotheses are:

Ho: u = 6.2
Ha: u > 6.2 [ANSWER, FIRST OPTION]