Can somone help me comeplete problems a-f? Also could it be completed the work in an excel worksheet please?

1. - a. Using the method of least squares, develop a cost function for monthly overhead costs using machine hours, pounds of material, and direct labor hours as the cost drivers. b. Recalculate the cost function making any necessary changes. c. Use the analysis process described in class to determine the suitability of the cost function. e. Estimate overhead costs for a month in which 1,400 machine hours are worked and 1.3 million pounds of materials are used. f. Prepare a 90% confidence interval for the estimate of monthly overhead costs . 1. - a. Using the method of least squares, develop a cost function for monthly overhead costs using machine hours, pounds of material, and direct labor hours as the cost drivers. b. Recalculate the cost function making any necessary changes. c. Use the analysis process described in class to determine the suitability of the cost function. e. Estimate overhead costs for a month in which 1,400 machine hours are worked and 1.3 million pounds of materials are used. f. Prepare a 90% confidence interval for the estimate of monthly overhead costs