Continuing our analysis of the Donor datafile (s_pml_donor_hw_v3), refer to "Data Dictionary - Donor.pdf" for data field definitions and your data audit performed for Homework #1. Task #1 (92 pts): Check the variable LIFETIME_GIFT_AMOUNT for extreme values using the following 5 techniques: "PROC EYEBALL", top/bottom X%, interquartile range, clustering and statistical. 1. First, in table format, perform a quick data integrity check on LIFETIME_GIFT_AMOUNT (using R or SAS) and identify all issues which may exist with respect to this variable