A research team has developed a new medication to treat ADHD

A research team has developed a new medication to treat ADHD. They think that their new medicine will be more effective than the current medication. The team asks local doctors to do a study in which newly diagnosed children with ADHD are matched with other children taking the current medication based on symptoms and physical attributes of the children. The research team will then test all the children after one year to determine the effectiveness of the treatments with a standardized symptom score-sheet (higher numbers = more severe symptoms).

What are the null and alternative hypotheses? H0:

H1:

What test should be used?

z-score 1 sample t Dependent t Independent t

Why that test?

Given the following information compute the test: M=5.18, Variance=2.11

What is the cutoff values?________________________________

Should the researcher: Retain H0 Reject H0 Interpret the findings:

Solution