Please do part (a) (b) and (c). Please show all your work. I need to fully understand how to solve the problems.

Thank you!

QUESTION 3 Paral cct Mark 1.00 out of 70 Flag question Selecting a Basis for Predicting Shipping Expenses (Requires Computer Spreadsheet) Boom Company assembles and sells portable speaker systems in the midwest. In an effort to improve the planning and control of shipping expenses, management is trying to determine which of three variables-units shipped, weight shipped, or sales value of units shipped-has the closest relationship with shipping expenses. The following information is available Month May June July August September October Weight Sales Value of Shipping Units Shipped Shipped (lbs.) Units Shipped Expenses $200,000 $8,960 220,000 2,320 160,000 10400 28,000 16,640 280,000 13,760 320,000 13,120 6,000 10,000 8,000 14,000 12,000 9,000 9,300 12,000 12,150 15,000 10,500 12,000 Required a. With the aid of a spreadsheet program, determine whether units shipped, weight shipped, or sales value of units shipped has the closest relationship with shipping expenses. Complete the r-squared values between each possible independent variable and shipping expenses: Round answers to two decimal places. Units shipped Weight shipped Sale value Based on the coefficient of determination, units shipped # has the closest relationship with shipping expenses. b. Using the independent variable that appears to have the closest relationship to shipping expenses, develop a cost-estimating equation for total monthly shipping expenses. Round answers to two decimal places Shipping expenses c. Use the equation developed in requirement (b) to predict total shipping expenses in a month when 5,000 units, weighing 7,000 lbs., with a total sales value of $114,000 are shipped. Round answers to two decimal places QUESTION 3 Paral cct Mark 1.00 out of 70 Flag question Selecting a Basis for Predicting Shipping Expenses (Requires Computer Spreadsheet) Boom Company assembles and sells portable speaker systems in the midwest. In an effort to improve the planning and control of shipping expenses, management is trying to determine which of three variables-units shipped, weight shipped, or sales value of units shipped-has the closest relationship with shipping expenses. The following information is available Month May June July August September October Weight Sales Value of Shipping Units Shipped Shipped (lbs.) Units Shipped Expenses $200,000 $8,960 220,000 2,320 160,000 10400 28,000 16,640 280,000 13,760 320,000 13,120 6,000 10,000 8,000 14,000 12,000 9,000 9,300 12,000 12,150 15,000 10,500 12,000 Required a. With the aid of a spreadsheet program, determine whether units shipped, weight shipped, or sales value of units shipped has the closest relationship with shipping expenses. Complete the r-squared values between each possible independent variable and shipping expenses: Round answers to two decimal places. Units shipped Weight shipped Sale value Based on the coefficient of determination, units shipped # has the closest relationship with shipping expenses. b. Using the independent variable that appears to have the closest relationship to shipping expenses, develop a cost-estimating equation for total monthly shipping expenses. Round answers to two decimal places Shipping expenses c. Use the equation developed in requirement (b) to predict total shipping expenses in a month when 5,000 units, weighing 7,000 lbs., with a total sales value of $114,000 are shipped. Round answers to two decimal places