You used the regression to find how the quality, measured in number of faulty units, depends on the expenditures on quality control (QE, measured in thousands of dollars). You found that QUALITY =50-0.5QE. If you use this result to predict quality when expenditures on quality control are $20,000, then expected number of faulty units is Choose one answer. a. 40 b. 45 c. 50 d. 35 Solution Answer question.