Examples for Hypothesis Testing

Since testing Ha: p >.80, p-value is the area in the upper tail, or to the right of z-value. Looking at the Table, find percentile associated with z=1.97 = 2.0 ( 97.73%, but that’s area to the left, since we need area to the right we do: 1- .9773 = 0.0227. p-value = 0.0227. By default we compare p-value with 0.05 significance level and see ... ................
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