Answer to Question #135758 in Statistics and Probability for Shane Malayan

Question

Dr. Xyz conducted a research study on the attitude of the online buyers in a certain district. The population size is 8,674. Determine the sample sizes using different methods of determining sample size.

Answer 1

n=(z²*p(1-p))/e², e - margin error,p - population proportion, z - z-score for the confidence level (for 90% - 1.68, for 95% - 1.96, for 99% - 2.58)

Confidence Level: 95%

Margin of Error: 5%

Ideal Sample Size: 368

Confidence Level: 90%

Margin of Error: 10%

Ideal Sample Size: 68

Confidence Level: 99%

Margin of Error: 1%

Ideal Sample Size: 5695