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QUESTION
If the estimated population proportion is .30 based on previous studies, and the acceptable error is plus or minus 5 percent, and the z-value for a...
If the estimated population proportion is .30 based on previous studies, and the acceptable error is plus or minus 5 percent, and the z-value for a 95 percent level of confidence is 1.96, the needed sample size is approximately
If the estimated population proportion is .30 based on previous studies, and the acceptable error is plus or minus 5 percent, and the zÂvalue for a 95 percent level of confidence is 1.96, the...