Morgan Bank has been encouraging its customers to use its new mobile banking app. While this may be good for business, the bank has to deal with a number of inquiries it receives about the new app. The accompanying table contains a portion of weekly inquiries the bank has received over the past 30 weeks. Deictureclick here for the Excel Data File a-1. Estimate the linear trend model. (Negative values should be indicated by a minus sign. Round your answers to 4 decimal places.) a-2. Use the estimated model to forecast the number of inquiries over the next two weeks. (Round coefficient estimates to at least 4 decimal places and final answers to 2 decimal places.)