stats

find critical z values, in each case assume normal distribution applies.

left tailed test. Alpha= 0.05

Can someone please explain how to do this?

asked by josh
  1. Z = (score-mean)/SD

    Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability related to each Z score. Compare to .05.

    posted by PsyDAG

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