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What size samples are needed for a statistical power

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Reference no: EM131799906

Question: Use the sample size calculator. What size samples are needed for a statistical power of 70 percent in detecting a difference of 5 percent between the estimated percentages of recent CD buyers in two independent samples? Assume an expected percentage in the range of 50 percent and an alpha error of 5 percent.

Reference no: EM131799906

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