A Biology Professor Reports That Historically Grades in Her Introductory

question 131

Essay

A biology professor reports that historically grades in her introductory biology course have
been distributed as follows: 15% A's, 30% B's, 40% C's, 10% D's, and 5% F's. Grades in her
most recent course were distributed as follows: $$\begin{array} { l | c | c | c | c | c } \text { Grade } & \text { A } & \text { B } & \text { C } & \text { D } & \text { F } \\\hline \text { Frequency } & 89 & 121 & 78 & 25 & 12\end{array}$$
a. Test an appropriate hypothesis to decide if the professor's most recent grade distribution
matches the historical distribution. Give statistical evidence to support your conclusion.
b. Which grade impacted your decision the most? Explain what this means in the context of
the problem.

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Definitions:

Royalty Agreements

Contracts specifying the terms under which royalties will be paid by one party to another, usually for the use of intellectual property, natural resources, or products.

Customer Base

The group of customers who repeatedly purchase the products or services of a business, forming the core of the company's sales revenue.

Goodwill

An intangible asset that represents the excess value of a company over its net asset value, often arising from factors such as reputation, brand, or customer loyalty.

Intangible Assets

Assets that do not have physical substance but are identifiable non-monetary assets without physical substance, used in the production or supply of goods or services, for rental to others, or for administrative purposes.