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For each of the following, calculate the z-statistic. (Round your answers to two decimal places.) (a) sample size n = 40; sample proportion p =

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For each of the following, calculate the z-statistic. (Round your answers to two decimal places.) (a) sample size n = 40; sample proportion p = 0.65 Ho: p = 0.50 H,: p # 0.50 Z = 0.55 X (b) sample size n = 50; sample proportion p = 0.15 Ho: p = 0.25 H_: p

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