Solve the Problem $n = 25$ $\bar { x } =$

Multiple Choice

Solve the problem.
-The confidence interval below for the population variance is based on the following sample statistics: $n = 25$ , $\bar { x } =$ $31.1$ , and $s = 4.2$ .
$$9.29 < \sigma ^ { 2 } < 42.82$$ What is the degree of confidence?

A) 95%
B) 99%
C) 90%
D) 98%