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n = z^2 (p*q)/ e^2 Using the formulas provided in your text, determine the approximate sample sizes for each of the following cases, all with
n = z^2 (p*q)/ e^2
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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