2. Interpreting scatterplots Aa Aa A new Attention-Deficit Hyperactivity Disorde

Question

2. Interpreting scatterplots Aa Aa A new Attention-Deficit Hyperactivity Disorder (ADHD) drug, Fokusin, was tested in 37 clinics as part of a National Institute of Mental Health multisite randomized clinical trial. After 6 months of treatment, the clinics reported on treatment dosage (in mg/kg) and improvement rate among their patients. Each clinic also specified the type of ADHD in its patients-either ADHD Primarily Inattentive or ADHD Hyperactive/Impulsive. A scatterplot of the improvement rate and treatment dosage data follows. A regression line is shown on the scatterplot.

Explanation / Answer

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1) The improvement is higher in case of blue circles.

2) There is a bit of negative relation between improvement rate and Fokusin dosage.

3) ADHD primarily inattentive......no apparent relationship

4)

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