A Group of 200 Students Takes the Kaplan Course in Hopes

question 54

Multiple Choice

A group of 200 students takes the Kaplan course in hopes that it will improve their SAT scores above the national mean of 500 on the math section.The population standard deviation of the SAT is known to be 100.Use an alpha level of .05 when answering the following questions.What is the null hypothesis?

• A)H₀: ì 500
• B)H₀: ì < 500
• C)H₀: ì > 500
• D)H₀: ì = 500

---

Definitions:

MC

MC stands for Marginal Cost, which is the cost of producing one additional unit of a good or service.

Peak Efficiency

The maximum operational efficiency that a process, system, or organization can achieve under ideal conditions.

Dot.Com Businesses

Companies that operate primarily on the internet, typically involved in e-commerce or providing online services, and were especially prominent during the late 1990s internet boom.

Venture Capitalists

Investors who provide capital to startups and early-stage companies with high growth potential in exchange for equity, or an ownership stake.