In the Past,of All the Students Enrolled in "Basic Business

question 39

Essay

In the past,of all the students enrolled in "Basic Business Statistics," 10 percent earned A's,20 percent earned B's,30 percent earned C's,20 percent earned D's,and the rest either failed or withdrew from the course.Dr.Johnson is a new professor teaching "Basic Business Statistics" for the first time this semester.At the conclusion of the semester,in Dr.Johnson's class of 60 students,there were 10 A's,20 B's,20 C's,5 D's,and 5 W's or F's.Assume that Dr.Johnson's class constitutes a random sample.Dr.Johnson wants to know if there is sufficient evidence to conclude that the grade distribution of his class is different from the historical grade distribution.At α = .05,test to determine if the grade distribution for Dr.Johnson's class is different from the historical grade distribution.

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Definitions:

Intrastate Business

Business operations that occur solely within one state’s borders, not involving or affecting trade between states.

U.S. Constitution

The supreme law of the United States, establishing the national framework of government and the fundamental rights of its citizens.

Federal Government

The national government of a country, which holds the highest level of authority over the nation's states or territories.

State Lines

Geographical boundaries that separate individual states within a country, often influencing laws and regulations.