Question: A multiple comparison procedure for comparing four treatment means produced the confidence intervals shown here. Rank the means from smallest to largest. Which means are

A multiple comparison procedure for comparing four treatment means produced the confidence intervals shown here. Rank the means from smallest to largest. Which means are significantly different?

(μ1) - μ2): (2, 15)

(μ1) - μ3): (4, 7)

(μ1) - μ4): (-10, 3)

(μ2) - μ3): (-5, 11)

(μ2) - μ4): (-12, -6)

(μ3) - μ4): (-8, -5)

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