12.70 A regression model was estimated to compare performance of students taking a business statistics course—

either as a standard 14-week course or as an intensive 3-week course. The following model was estimated from observations of 350 students (Van Scyoc and Gleason 1993):

yn = -.7052 + 1.4170x1 + 2.1624x2 + .8680x3 + 1.0845x4 10.45682 10.32872 1.43932 10.37662

+ 0.4694x5 + 0.0038x6 + 0.0484x7 R2 = 0.344 10.06282 10.00942 10.07762 where yn = score on a standardized test of understanding of statistics after taking the course x1 = dummy variable taking the value 1 if the 3-week course was taken and 0 if the 14-week course was taken x2 = student's grade point average x3 = dummy variable taking the value 0 or 1, depending on which of two teachers had taught the course x4 = dummy variable taking the value 1 if the student is male and 0 if female x5 = score on a standardized test of understanding of mathematics before taking the course x6 = number of semester credit hours the student had completed x7 = age of student The numbers in parentheses under the coefficients are the estimated coefficient standard errors.
Write a report discussing what can be learned from this fitted regression.
The following exercises will require a computer.