DIRECTIONS: Identify the appropriate hypothesis test for each of the following research situations labeled (a) - (d). Make sure to label your responses clearly!

1. A developmental therapist investigate the association of bedtime story (yes, no) and children's quality of sleep (good, bad)
2. A scientist investigates the difference in attention scores among college students by matching the attention scores between two groups of students, those who drink alcohol regularly and those who rarely drink
3. A psychologist wants to know if there is a significant difference in generosity among children of different parenting styles: Authoritative, Authoritarian, Permissive, Uninvolved.
4. A researcher is examining the association between body tattoos (yes, no) and attractiveness rating score