Given $\mathrm { H } _ { 0 } : \mu \geq 23.5 \text { and } \alpha = 0.05 \text {, }$

Multiple Choice

Given $\mathrm { H } _ { 0 } : \mu \geq 23.5 \text { and } \alpha = 0.05 \text {, }$ which level of confidence should you use to test the claim?

A) 90%
B) 99%
C) 80%
D) 95%