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One-way ANOVA Inference for one-way ANOVA - page 36 / 41

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The ANOVA test is significant (α 5%): we have found evidence that the three methods do not all yield the same population mean reading comprehension score.

Teaching methods

A study compares the reading comprehension (“COMP,” a test score) of children randomly assigned to one of three teaching methods: basal, DRTA, and strategies.

We test:    H0: µBasal = µDRTA = µStrat        vs.      Ha: H0 not true

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