Lesson 3.8 Inference and Experiments

What was the main purpose of the classroom experiment involving resumes?

• To explore potential biases in hiring

• To teach students how to write resumes

• To determine the most popular name

• To find the best math teacher

What does a difference in means indicate in the context of the resume experiment?

• The experiment was not conducted properly

• One name was preferred over the other

• The students did not understand the task

• The resumes were identical

Why is random assignment important in experiments?

• It makes the experiment more fun

• It guarantees a significant result

• It helps determine if differences are due to chance

• It ensures everyone gets the same result

What is considered statistically significant in terms of percentage?

• Between 20% and 30%

• Exactly 10%

• Less than 5%

• More than 50%

How does sample size affect the results of an experiment?

• Larger samples make results less reliable

• Smaller samples are always better

• Larger samples provide more convincing evidence

• Sample size has no effect on results