Suppose there is a significant difference between the percentage of female shoppers who purchased ChocMoo and the percentage of male shoppers who purchased ChocMoo. Would the researcher be well-justified in claiming that the difference in percentage was caused by the shopper's gender? Choose the best answer below. Yes. Because the procedure used data gathered over an extended period of time (six months), the data set will be large. So, claiming a cause-and-effect relationship is well-justified. No. The researcher has only found evidence to support a claim that a shopper's gender is associated with the decision to purchase ChocMoo. No. There is no procedure, however well-designed, that can give evidence to support a claim of a cause-and-effect relationship