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

question 42

Multiple Choice

In the past,of all the students enrolled in "Basic Business Statistics" 10% earned A's 20% earned B's,30% earned C's,20% 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 than the historical grade distribution. Calculate the expected values for A's and D's.

• A)10,5
• B)10,12
• C)12,12
• D)12,5

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Definitions:

Easement

A legal right to use another's land for a specific limited purpose without owning it.

Orally

Expressed in spoken rather than written words; pertaining to verbal communication.

Access

The ability or right to enter, approach, or use something, such as a building, information, or a service.

Period of Years

A specified duration or length of time, often used in legal contexts to describe the term of a contract or agreement.