Reconsider the previous exercise about the study of whether there is an association between number of flip-flops and a person’s sex.
a. Use the information available in the previous exercise to find a standardized statistic to test whether the average number of flip-flops men have is different from that of women. Report the standardized statistic and interpret it in the context of the study.
b. Based on the standardized statistic, how much evidence do you have against the null hypothesis?

Data from previous exercise

In a survey of introductory statistics students, an instructor asked her students how many flip-flops they have. Suppose that the intent is to study whether there is an association between number of flip-flops and a person’s sex.