Essentials of Business Analytics 1st Edition by Jeffrey Camm,James Cochran,Michael Fry,Jeffrey Ohlmann ,David Anderson

Exercise 26

Approximately 1.65 million high school students take the Scholastic Aptitude Test (SAT) each year, and nearly 80 percent of the college and universities without open admissions policies use SAT scores in making admission decisions. The current version of the SAT includes three parts: reading comprehension, mathematics, and writing. A perfect combined score for all three parts is 2400. A sample of SAT scores for the combined three-part SAT are as follows:
1665 1525 1355 1645 1780
1275 2135 1280 1060 1585
1650 1560 1150 1485 1990
1590 1880 1420 1755 1375
1475 1680 1440 1260 1730
1490 1560 940 1390 1175
a. Show a frequency distribution and histogram. Begin with the first bin starting at 800, and use a bin width of 200.
b. Comment on the shape of the distribution.
c. What other observations can be made about the SAT scores based on the tabular and graphical summaries