2] In a simple linear regression model, the standard error of the estimate of y represents A. A measure of variability of the actual observations from the least squares line. B. A range of values constructed from the regression equation results for a specified level of probability. C. The proportion of the variance explained by the independent variable. D. The nature of the relationship between the independent and dependent variable.

[5] Sophie Corp reports total overhead cost of $45,800 when the company uses 1,500 machine hours. When 800 machine hours are used, the company reports $37,750 in total overhead costs. What is the estimated total overhead cost when 1,200 machine hours are used? A. $28,550 B. $43,596 C. $42,350 D. $13,800

please explain question 5