The Sign Test Is Performed to Test $H _ { 0 } : m = 45 \text { versus } H _ { 1 } : m \neq 45 \text {. }$

Multiple Choice

The sign test is performed to test $H _ { 0 } : m = 45 \text { versus } H _ { 1 } : m \neq 45 \text {. }$
There are 15 positive signs and 7 negative signs. What is the value of the test statistic?

A) 15
B) -8
C) 7
D) 8