State the Properties of Student S T-Distribution
-To Select the Correct

Multiple Choice

State the Properties of Student s t-Distribution
-To select the correct Student's t-distribution requires knowing the degrees of freedom. How many degrees of freedom are there for a sample of size n?

A) $n - 1$
B) $n$
C) $\mathrm { n } + 1$
D) $\frac { \bar { x } - \mu } { s / \sqrt { n } }$