Assume that the average person in America weighs 150 pounds ($\mu$ ). You want to determine whether college students weigh less than the average American. Following are the weights collected on a sample of college students: 120, 105, 166, 170, 145, 149, 135, 115, 168, 138.
-Is this a one- or two-tailed test?

Question

Assume that the average person in America weighs 150 pounds ($\mu$ ). You want to determine whether college students weigh less than the average American. Following are the weights collected on a sample of college students: 120, 105, 166, 170, 145, 149, 135, 115, 168, 138. 
-Is this a one- or two-tailed test?

Quizplus · Accepted Answer

The Answer of Assume that the average person in America weighs 150 pounds ($\mu$ ). You want to determine whether college students weigh less than the average American. Following are the weights collected on a sample of college students: 120, 105, 166, 170, 145, 149, 135, 115, 168, 138. 
-Is this a one- or two-tailed test?

Assume That the Average Person in America Weighs 150 Pounds μ\muμ

Assume That the Average Person in America Weighs 150 Pounds $\mu$