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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Definitions:

Interaction

Interaction can describe the reciprocal effect of two or more variables on each other in a study, or the communication and influence between individuals in social psychology.

Factorial Design

An experimental setup that allows researchers to study the effects of two or more independent variables on a dependent variable simultaneously.

Physical Attractiveness

The perception of an individual's physical traits as aesthetically pleasing or attractive, often influenced by societal standards.

Judgments of Responsibility

The process of evaluating the extent to which a person or entity is accountable for an action or outcome.