MORTGAGE APPROVAL TIME STUDY
, A major financial services company wishes to better understand its mortgage approval process. In particular, the co
interested in learning about the effects of credit history (good versus fair), the size of the mortgage (<$500,000 ver
>$500,000), and the region of the United States (western versus eastern) on the amount of time it takes to get a m
approved. The database of mortgages approved in the last year is accessed, and a random sample of five approved m
selected for each of the eight combinations of the three variables. The data are shown in the table.
Mortgage Approval Time Study
•Credit History Mortgage Size Region Approval Times (Days)
•Good <$500,000 Western 59 50 64 62 47
•Fair <$500,000 Western 81 58 69 65 74
•Good >$500,000 Western 38 52 58 60 65
•Fair >$500,000 Western 146 159 133 143 129
•Good <$500,000 Eastern 28 26 38 41 21
•Fair <$500,000 Eastern 42 53 40 50 64
•Good >$500,000 Eastern 49 31 49 42 38
•Fair >$500,000 Eastern 106 115 126 118 138