Test Hypotheses About a Population Mean with Known Using Confidence $\mathrm { H } _ { 0 } : \mu = \mu _ { 0 }$

Multiple Choice

Test Hypotheses about a Population Mean with Known Using Confidence Intervals
-When testing $\mathrm { H } _ { 0 } : \mu = \mu _ { 0 }$ , using confidence intervals, if $\mu$ is not contained in the confidence interval then we would

A) reject $\mathrm { H } _ { 0 }$ .
B) fail to reject $\mathrm { H } _ { 0 }$ .
C) alter the level of confidence to allow $\mu$ to be in the confidence interval.
D) draw no conclusion and gather more sample data.