E. Richard Table

E. Richard Table is a statistical tool used in marketing research to determine the optimal sample size needed for surveys or studies. It helps researchers decide how many people they need to survey to get reliable results, balancing accuracy with resource constraints. By inputting factors like desired confidence level and margin of error, the table provides a recommended number of respondents. This ensures the findings are representative of the larger population without conducting unnecessary or too few surveys. Ultimately, it aids in designing efficient, effective research strategies.