A multiple-comparison procedure for comparing four treatment means produced the confidence intervals shown here. Rank the means

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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?

1m1 - m22: (2, 15)

1m1 - m32: (4, 7)

1m1 - m42: 1 -10, 32 1m2 - m32: 1 -5, 112 1m2 - m42: 1 -12, -62 1m3 - m42: 1 -8, -52

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