Go to http://www.surveysystem.com/sscalc.htm to determine the appropriate sample size for a population in your country. Briefly explain what is meant by confidence interval and confidence level. Assuming a confidence interval of 5, how large should the sample of households be when desiring a 95 percent confidence level? How large for a 99 percent confidence level?

(AACSB: Communication; Information Technology;

Analytical Thinking) p-635