The most commonly used level of confidence in marketing research is the 90% level,corresponding to 1.65 standard errors with the 90% level of confidence usually the default level found in statistical analysis programs such as SPSS.

Question

Quizplus · Accepted Answer

The most commonly used level of confidence in marketing research and many other fields is the 95% level, corresponding to approximately 1.96 standard errors. The 95% level of confidence is often the default in statistical analysis programs, not the 90% level.

The Most Commonly Used Level of Confidence in Marketing Research