Posted by **Christine** on Saturday, May 24, 2008 at 12:54pm.

Does the null hypothesis for a nondirectional alternative hypothesis differ from the null hypothesis for a directional alternative hypothesis? Explain.

I have no idea how to state the answer for this.

- Statistics -
**PsyDAG**, Sunday, May 25, 2008 at 1:07pm
Depending on the level of significance used, usually P=.01 or P=.05 (to reject the Ho, null hypothesis) the values needed for a one-tailed test (directional) are lower than those for a two-tailed (nondirectional) test.

This should start you out. I hope it helps. Thanks for asking.

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