Hypothesis Testing – Proportion and One Mean

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P-value Guidelines when using Standard Normal Table (i.e. the Z-table):

Keep this in mind: The method for finding the p-value is based on the alternative hypothesis.  Minitab will provide the p-value but if doing by hand using Table A1 observe the following:

            For Ha: p ≠ po then the p-value = 2P(Z ≥ |z|)   That is, find 1 – P(Z < |z|) and then multiply this p-value by 2.

                For Ha: p > po then the p-value = P( Z ≥ z)

            For Ha: p < po then the p-value = P( Z ≤ z)

 

 1. 

  • 9 years ago
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