The time (in minutes) that a subject spent on a psychological test was used as a measure of cognitive function. 41 schizophrenics (2) and 49 non-schizophrenics (1) were given the test, and their time was recorded. Psychologists theorize that the mean time on the test for non-schizophrenics will be less than the mean for schizophrenics. Which test should be used to test the theory that the mean time on the test for non-schizophrenics will be less than the mean for schizophrenics

idk i would have to be there to under stand it

step-by-step explanation:

idk i would have to be there to under stand it

with btw u said 100pts but it clearly says

i answerd and just got 10pts

no hate

the answer is d

hope this

step-by-step explanation:

the ratio of red paint to blue paint is always 9/7. that means that, whatever x's value, (4x+12)/(4x-4) has that same ratio. so, set up an equation and cross-multiply to solve for x:

9/7 = (4x+12)/(4x-4)

9(4x-4) = 7(4x+12)

36x - 36 = 28x + 84

8x - 36 = 84

8x = 120

x = 15