The Average Length of Time, Per Week, That Students at a Certain

question 101

Short Answer

The average length of time, per week, that students at a certain university spend on homework is normally distributed with a mean of 24.3 hours and a standard deviation of 1.4 hours. Jane tells her parents she spends more time studying than 75% of the students on campus. How many hours per week must Jane spend on homework for this to be true?

---

Definitions:

Diminishing Returns

A principle stating that as one factor of production increases while others remain fixed, there will eventually be a decrease in the incremental output gained.

Normal Rate

A standard or usual level of financial return on investment or interest on loans.

Supply

The total amount of a product or service that is available to consumers at a given price over a specific period.

Profits

The financial gain obtained when the revenues generated from business activities exceed the expenses, costs, and taxes involved in sustaining the activity.