Reconsider the previous exercises about the study of whether there is an association between number of flip flops and a person’s sex.
a. Use the 2SD method and the information available in the previous exercises to find a 95% confidence interval for the difference in average number of flip-flops that men have and that women have.
b. Interpret the confidence interval reported in part (a) in the context of the study.
c. Do the conclusions from this confidence interval agree with the conclusions from the p-value of 0.001 reported in the previous exercise? Explain your reasoning.