Housing Sales Case In this case, we are interested in analy a time series of quarterly housing sales data for the last 30 years (Year 1 Quarter 1 to Year 30 Quarter 4). The Excel dataset "Housing Sales.xls" carries the historical records of the number of single houses sold in the southeastern region in the U.S. With the data given, (a). Obtain a time series (TS) plot of the sales data, discuss any patterns relating to trend and Housing Sales Case In this case, we are interested in analy a time series of quarterly housing sales data for the last 30 years (Year 1 Quarter 1 to Year 30 Quarter 4). The Excel dataset "Housing Sales.xls" carries the historical records of the number of single houses sold in the southeastern region in the U.S. With the data given, (a). Obtain a time series (TS) plot of the sales data, discuss any patterns relating to trend and