Refer to the previous exercise.
a. Run a t test and report the P-value for the two-sided alternative hypothesis.
b. Using a significance level of 0.10, are the decisions based on the t test and based on the permutation test comparable? Which one would you trust more?
c. Remove the largest observations (which could be outliers) in each of the two groups, as was done in Exercise 10.32. Does the conclusion of the permutation test change?