After a series of major corporations admitted to large accounting irregularities, a public policy research institute conducts a survey to determine whether the public favors increased governmental regulation and oversight of corporations. The following questions will deliver an unbiased response is: Should privately-owned companies be subjected to intrusive governmental regulation and oversight?

In a finance class, the midterm exam's scores were distributed approximately normally, with mean 13 (out of 20), and standard deviation 4. Approximately, 84% proportion of the test takers scored no higher than 17.

When an additional independent variable is added to a regression analysis, would a drop in R-squared and a drop in significance for one or more independent variable; a drop in adjusted R-squared and an increase in significance for one or more independent variable.