Problem 14 (in this chapter) used data from a study of self-awareness. In another portion of the study, a group of participants had the following values.

59,106,174,207,219,237,313,365,458,497,515, 529,557,615,625,645,973,1,065,3,215.

Compute a .95 confidence interval for both the population mean and 20%

trimmed mean.