A Multiple-Comparison Procedure for Comparing Four Treatment Means Produced the Confidence

question 77

Short Answer

A multiple-comparison procedure for comparing four treatment means produced the confidence intervals shown below. Rank the means from smallest to largest. Use solid lines to connect those means which are not significantly different. $\begin{array} { l } \left( \mu _ { 1 } - \mu _ { 2 } \right) : ( 8,20 ) \\\left( \mu _ { 1 } - \mu _ { 3 } \right) : ( - 8,4 ) \\\left( \mu _ { 1 } - \mu _ { 4 } \right) : ( 10,20 ) \\\left( \mu _ { 2 } - \mu _ { 3 } \right) : ( - 20 , - 12 ) \\\left( \mu _ { 2 } - \mu _ { 4 } \right) : ( - 2,4 ) \\\left( \mu _ { 3 } - \mu _ { 4 } \right) : ( 10,24 )\end{array}$

A) $\overline { 4 2 }\quad \overline { 13 }$
B) $4213$
C) $\overline { 41 } \quad\overline { 23 }$
D) $24 \overline { 13 }$

• A) \(\overline { 4 2 }\quad \overline { 13 }\)
• B) \(4213\)
• C) \(\overline { 41 } \quad\overline { 23 }\)
• D) \(24 \overline { 13 }\)

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