A Random Sample of Size 15 Is Drawn from a Continuous

Multiple Choice

A random sample of size 15 is drawn from a continuous and symmetric probability distribution with mean $\mu .$ In testing $H _ { o } : \mu = 300 \text { versus } H _ { a } : \mu \neq 300$ using the Wilcoxon signed-rank test with approximate level of significance of .05, the rejection region for the test is

A) $s _ { + } \geq 95$
B) $s _ { + } \leq 25$
C) either $s _ { + } \geq 95$
Or $s _ { + } \leq 25$
D) $s _ { + } \leq 95$
E) $s _ { + } \geq 25$