A confidence interval for $\left( \mu _ { 1 } - \mu _ { 2 } \right)$ is $( 5,8 )$. Which of the following inferences is correct? A) $\mu _ { 1 } = \mu _ { 2 }$ B) no significant difference between means C) $\mu _ { 1 } \mu _ { 2 }$

Question

A confidence interval for $\left( \mu _ { 1 } - \mu _ { 2 } \right)$ is $( 5,8 )$. Which of the following inferences is correct?
A) $\mu _ { 1 } = \mu _ { 2 }$
B) no significant difference between means
C) $\mu _ { 1 } < \mu _ { 2 }$
D) $\mu _ { 1 } > \mu _ { 2 }$

Quizplus · Accepted Answer

The confidence interval (5,8) for $( \mu _ { 1 } - \mu _ { 2 } )$ indicates that the difference between the means is positive, suggesting that $\mu _ { 1 }$ is greater than $\mu _ { 2 }$.

A Confidence Interval For (μ1−μ2)\left( \mu _ { 1 } - \mu _ { 2 } \right)(μ1​−μ2​)

A Confidence Interval For $\left( \mu _ { 1 } - \mu _ { 2 } \right)$