1. You have a dataset with a variable, Job Title, describing the job title of the people in the sample. The job titles are: professor, hair stylist, influencer, business analyst, engineer, computer scientist, K-12

teacher, sales associate, investment banker, and baker. How many dummy variables do you need to create in order to analyze the effect of job title on salary?

a 9

b 10

c 0

d 2

2. Which of the following is an example of survivorship bias?

O All of these.

O None of these.

O Conducting a survey of recent college graduates on their job interview experiences.

O Surveying people recently hired for a job to hear their advice for interviewing for that job.

O Conducting an experiment on interview techniques.

3. What is the lowest value a p-value can be in order to be statistically significant at the 5% level?

O 0.05

O 0.0499

O 0.09

O 0.50

O 0.051