Acollege entrance exam company determined that a score of 22 on the mathematics portion of the exam suggests that a student is ready for college-level mathematics. to achieve this goal, the company recommends that students take a core curriculum of math courses in high school. suppose a random sample of 250 students who completed this core set of courses results in a mean math score of 22.5 on the college entrance exam with a standard deviation of 3.5. do these results suggest that students who complete the core curriculum are ready for college-level mathematics? that is, are they scoring above 22 on the math portion of the exam? complete parts a) through d) below.