4. Approach a faculty member with whom you are working and ask whether it would be possible to use a portion of an uncleaned data set to hone your data-cleaning skills (taking precautions to preserve confidentiality of the data). Identify a data-cleaning strategy suitable for the data and use SPSS or another statistical package to assist with the data-cleaning process. To what degree does your clean version of the data file compare with the official cleaned version of the data file? If there are differences between the two files, it may be instructive to use the differences as an opportunity to discuss different strategies for data cleaning.