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Exhibit 8-5 A Random Sample of 64 SAT Scores of Students Applying

question 3

Multiple Choice

Exhibit 8-5
A random sample of 64 SAT scores of students applying for merit scholarships showed an average of 1400 with a standard deviation of 240.
-Refer to Exhibit 8-5. If we want to provide a 95% confidence interval for the SAT scores, the degrees of freedom for reading the critical values of "t" statistic is

Definitions:

Economic Reform

The implementation of policy changes aimed at improving a country's economic efficiency, often through measures such as deregulation, reduction of corruption, tax reform, and encouraging private sector growth.

Mikhail Gorbachev

A former Soviet statesman who served as the last leader of the Soviet Union, known for his policies of glasnost (openness) and perestroika (restructuring) which led to the end of the Cold War.

Soviet Union

A socialist state that existed from 1922 to 1991, consisting of multiple republics, and was a major global power, eventually disbanding and leading to the rise of independent nations, including Russia.

Second Gilded Age

A term used to describe a period of extreme wealth and economic inequality in the United States, reminiscent of the Gilded Age of the late 19th century but occurring in the late 20th and early 21st centuries.