I want to check my work if possible for this test I re did my work but got two separate outcomes.

Question 25 (4.5 points) This is 1 part of a 5-part question: An important application of regression analysis is the estimation of cost, particularly the effect of production volume on total cost. The following data come from a company which has kept track of production volume and total cost at several different levels of production. Production volume (units) Total cost ($) 400 4000 450 5000 550 5400 600 5900 700 6400 750 7000 Use these data to estimate a regression designed to capture the effect of production volume on total cost. Use your regression equation to estimate total cost when production volume = 500? Round your answer to the dollar (0 decimal places). Your