15th February 2024

A group of researchers are investigating the efficacy of a new medication for Alzheimer’s dementia.

A group of researchers are investigating the efficacy of a new medication for Alzheimer’s dementia. In this study, patients with Alzheimer’s disease were recruited, with an equal number of patients given donepezil and the new medication. The ACE-III score of each group was assessed following one year of treatment. The data from both groups demonstrated a right skew. 

Which statistical test is most appropriate to identify a significant difference between the two groups?