A regression of accountants' starting salaries in a large firm was estimated using 40 new hires and five predictors (college GPA, gender, score on CPA exam, years' prior experience, size of graduating class). The standard error was $3,620. Find the approximate width of a 95 percent prediction interval for an employee's salary, assuming that the predictor values for the individual are near the means of the sample predictors. Would the quick rule give similar results?