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Exercise 6-34 Estimating Cost Behavior by Multiple Methods (Appendix) (LO 6-1, 6-2, 6-5, 6-9) Gator Beech Marts, o chain of convenience grocery stores in the Fort Lauderdale area, has store hours that fluctuate from month to month as the tourist trade in the community varies. The utily costs for one of the company's stores are listed below for the past six months: Required: 1-a. Use the high-low method to estimate the cost behavior for the store's utily costs. Express the cost behavior in formula form ( Y=a +b 1-b. What is the variable utility cost per hour of operation? 3-a. Construct an Excel spreadsheet and use the Excel commands to perform a least-squares regression. Estimate the cost behavior: for the store's utlity cost. Express the cost behavior in formula form. 3-b. What is the variable utlity cost per hour of operation? 4. During July, the store will be open 300 hours. Predict the stere's total utility cost for July using each of the cost-estimation methods employed in requirements (1) and (3). Complete this question by entering your answers in the tabs below. Construct an Excel spreadaheet and use the Excel commands to perform a least-squares regression. Estimate the cost behavior tor the store's ubily cost. Express the cost behavior in formula form. (Round coeffeent of x to 2 decimal piaces and other answer to the nearest whole dollar amount.)