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4. Given the following categorical data: the number of success x = 128, sample size n = 200, and suppose the null hypothesis is Ho

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Given the following categorical data: the number of success x = 128, sample size n = 200, and suppose the null hypothesis is Ho : p = 0.81. Find the following: The sample proportion: p = 0.64 (Round to 3 decimals) The test statistic Z = (Round to 2 decimals)

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