Please answer the questions that follow. Don't forget to state any necessary assumptions! Please describe,

Please answer the questions that follow. Don't forget to state any necessary assumptions!

Please describe, with words and numerical coefficients, your model for the total cost function (again assuming a linear model).
How much variance in total cost is explained by estimating it with number of units manufactured using this linear model?
What is your best point-estimate (single number) for fixed cost? What about variable cost of producing 20 textbooks (again, single number)?

Data Item	Quantity (# of Books Produced)	Total Cost of Production
32	42	$ 428
33	43	$ 415
34	44	$ 450
35	45	$ 460
36	46	$ 450
37	47	$ 471
38	48	$ 500
39	49	$ 476
40	50	$ 450
Use these sums to verify your data entry into Excel:	1,137	$ 10,104