2. A cognitive psychologist was testing to see if a group of students using mental
images (X1 = 26, sx1 = 4.71) recalled more words than the group that did not use
mental images (X2 = 18, sx2 = 4.22). Does the data indicate significant differences
between the two groups using a=.05? N=10

step-by-step explanation:

check above link.

graphically?   well, you graph them both, the solutions is where they both intersect each other, since there are two solutions, meaning they will meet twice, or namely the linear will run into the quadratic curve twice, and where they meet, those x,y coordinates are the solutions to the system.

look at photo

image for option 4

step-by-step explanation:

i just know the internet