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DoKnow Co. like to estimate the variable and fixed cost components of its maintenance cost and has compiled the following data for the last 6 months of operation: Answer the following. Show solutions. All answers in two decimal places. 1. Compute for the summation of XY. 2. Compute for the summation of X squared. 3. Using Hi-Lo method, what is the estimated fixed cost per month for maintenance 4. Using the least square method, what is the estimated variable cost per labor hour. 5. If the company will use 230 labor hours in July, what would be the estimated variable cost per labor hour for maintenance using Hi-Lo method. 6. What is the estimated fixed cost per month for maintenance if least square method is used? 7. If the company will use 230 hours labor hours in July, what would be the total predicted cost of maintenance? 8. How much is the total variable cost of maintenance if least square method is used assuming 150 labor hours is consumed in July? 9. What is the predicted cost of Maintenance for the nonth of July assuming 150 labor hours are consumed if least square method is used. Write your final answers below. 1. 2. 3. 4. 5. 6. 7. 8. 9. DoKnow Co. like to estimate the variable and fixed cost components of its maintenance cost and has compiled the following data for the last 6 months of operation: Answer the following. Show solutions. All answers in two decimal places. 1. Compute for the summation of XY. 2. Compute for the summation of X squared. 3. Using Hi-Lo method, what is the estimated fixed cost per month for maintenance 4. Using the least square method, what is the estimated variable cost per labor hour. 5. If the company will use 230 labor hours in July, what would be the estimated variable cost per labor hour for maintenance using Hi-Lo method. 6. What is the estimated fixed cost per month for maintenance if least square method is used? 7. If the company will use 230 hours labor hours in July, what would be the total predicted cost of maintenance? 8. How much is the total variable cost of maintenance if least square method is used assuming 150 labor hours is consumed in July? 9. What is the predicted cost of Maintenance for the nonth of July assuming 150 labor hours are consumed if least square method is used. Write your final answers below. 1. 2. 3. 4. 5. 6. 7. 8. 9