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An accountant wishes to predict direct labor cost (y) on the basis of the batch size (x) of a product produced in a job shop. Data for 12 production runs are given in the table below, along with the Excel output from fitting a least squares regression line to the data. D. Click here for the Excel Data File (a) Calculate b1 and b0. (Round intermediate steps to 4 decimals places.) (b) Interpret the meanings of b0 and b1. Does the interpretation of b0 make practical sense? (c) Write the least squares prediction equation, (Round your answers to 4 decimal places.)