Mathematics, 09.12.2020 04:00 GaryCarmine
A researcher expects the population proportion of Cubs fans in Chicago to be 80 percent. The researcher wishes to have an error of less than 5 percent and to be 95 percent confident of an estimate to be made from a mail survey. What sample size is required? (show your full calculations)
Z = 1.96
E = 0.05
p = 0.8
q = 0.20
Answers: 3
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