A New Manufacturing Plant Has 20 Job Openings

Short Answer

A new manufacturing plant has 20 job openings. To select the best 20 applicants from among the 1,000 job seekers, the plant's personnel office administers a written aptitude test to all applicants. The average score on the aptitude test is 150 points with a standard deviation of 10 points. Assume the distribution of test scores is approximately mound-shaped.
a. What percentage of the test scores will fall between 130 and 160 points?
Approximately ______________. (Enter as a decimal percent or use the % sign.)
b. How many applicants will score between 130 and 160 points?
At least ______________ applicants.
c. One of the applicants scored 192 points on the test. What might you conclude about this test score?
____________________________