Using the formulas provided in your text, determine the approximate sample sizes for each of the following

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Using the formulas provided in your text, determine the approximate sample sizes for each of the following cases, all with precision (allowable error) of ±5%:
a. Variability of 30%, confidence level of 95%
b. Variability of 60%, confidence level of 99%
c. Unknown variability, confidence level of 95%
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Marketing Research

ISBN: 978-0133074673

7th edition

Authors: Alvin C. Burns, Ronald F. Bush

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