The statement "Drug X has no effect on Y and any observed effect is due to chance alone" is an example of a nondirectional alternative hypothesis.

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The statement provided is actually an example of a null hypothesis, not an alternative hypothesis. It states that there is no effect and any observed effect is due to chance, which is the opposite of an alternative hypothesis, which proposes a specific relationship or effect between variables. Additionally, since the statement suggests that any observed effect is due to chance, it is not a directional alternative hypothesis, which would propose a specific direction for the effect (e.g. Drug X increases Y).

The Statement "Drug X Has No Effect on Y and Any