Essentials Of Cost Accounting For Health Care Organizations 3rd Edition by Steven Finkler, David Ward,Judith Baker

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Suppose Eldercare Clinic has monthly data for the last five years that describes its total utility costs and the total number of meals that the organization has served and they want to predict their utility costs for the next month. They could use either the Hi-Low method or linear regression to make the forecast. What cost factors do each of the methods try to estimate? Why is the regression method likely to provide Meals with a better forecast?