A researcher compares two methods for quitting smoking Metho

A researcher compares two methods for quitting smoking. Method A is using self-help group and Method B is using the eCigarette. The self-help group actually works better than the eCigarette, but when the researcher runs the statistics, she finds there is no difference between Method A and Method B. Choose the best description of the researcher

Answer: Type II Error (False Negative)

We do not reject the null hypothesis when it is false.