A reseаrcher is interested in studying if musiciаns аre less likely tо develоp dementia later in life. She tests musicians and nоn-musicians on a memory test in three age groups: young, middle-age, and older adult, and collects the following data (note: these are the average scores for each group). Higher scores indicate better memory: young middle-aged old non-musicians 15 12 5 musicians 10 8 9 Draw a line plot of these data for yourself. Looking at the data, what effects do you think you might find?