Question: z-Value for Testing p p = d : To test the null hypothesis H that p p = d , where d

z-Value for Testing p – p = d : To test the null hypothesis H that p – p = d , where d ≠ 0, we base our decision on which is a value of a random variable whose distribution approximates the standard normal distribution as long as n and n are both large. With reference to Example 10.11 on page 384, test the hypothesis that the percentage of town voters favoring the construction of the chemical plant will not exceed the percentage of county voters by more than 3%. Use a P-value in your conclusion.

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