A Tutoring Company Claims That 75% of the High School

question 73

Essay

A tutoring company claims that 75% of the high school students who hire one of their tutors will improve their grades.
A) In a sample of 100 high school students, what is the probability that 80% or more improved their grades?
B) In a sample of 200 high school students, what is the probability that 80% or more improved their grades?
C) Comment on the reason for the difference between the computed probabilities in parts a and b.

• A) In a sample of 100 high school students, what is the probability that 80% or more improved their grades?
• B) In a sample of 200 high school students, what is the probability that 80% or more improved their grades?
• C) Comment on the reason for the difference between the computed probabilities in parts a and b.

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New Netherland

A 17th-century colonial province of the Dutch Republic that included parts of what are now the northeastern United States.

Hudson River

A river in New York, United States, known for its historical significance and beauty, running from the Adirondack Mountains to New York City.

Gulf Coast

Refers to the coastline along the Gulf of Mexico, embraced by states like Florida, Alabama, Mississippi, Louisiana, and Texas, known for its unique cultural heritage and natural beauty.

International Commerce

The exchange of goods, services, and capital across international borders or territories, which is influenced by governmental trade policies, international agreements, and global market dynamics.