Question: Using the formulas provided in your text, determine the approximate sample sizes for each of the following cases, all with precision (allowable error) of +

Using the formulas provided in your text, determine the approximate sample sizes for each of the following cases, all with precision (allowable error) of + or - 5 percent: a. Variability of 40%, confidence level of 95% b. Variability of 55%, confidence level of 99% c. Variability of 20%, confidence level of 90% d. Unknown variability, confidence level of 95%

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