In the Past, of All the Students Enrolled in Basic

question 13

Short Answer

In the past, of all the students enrolled in Basic Business Statistics, 10 percent earned an A, 20 percent earned a B, 30 percent earned a C, 20 percent earned a D, and the remainder failed the course. Dr. Johnson is a new professor teaching Basic Business Statistics for the first time this semester. At the conclusion of the semester, of his 60 students, 10 had earned an A, 20 a B, 20 a C, 5 a D, and 5 received an F. Assume that the 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. Calculate the expected values for an A and for a D.

---

Definitions:

Accounts Receivable

Accounts receivable refers to the money owed to a company by its customers for goods or services that have been delivered or used but not yet paid for.

Sales Revenue

The total amount of money generated from the sale of goods or services by a company before any expenses are subtracted.

Purchases Journal

A specialized accounting journal used to record all purchases of merchandise, inventory, and other items on credit.

Accounts Payable

Accounts payable is the amount of money a company owes to its suppliers or creditors for goods and services purchased on credit.