Solution :
It is given that a psychologist wants to determine the difficulty of the task influences on the estimate of how long people spend working on it.
Now we have to describe a experiment by using a completely randomized design and learn the effect of the difficulty on the estimated time is by randomly assigning 15 students to a Group 1 of easy mazes and other 15 students to the second group 2 of hard mazes. And then we compare the time estimates of the two groups.
it is 10.63
Step-by-step explanation:
Used a calculator
Answer:
y = 1/4x + 3
Step-by-step explanation:
m = 1/4, (-4,2)
y -2 = 1/4(x - - 4)
y - 2 = 1/4 (x + 4)
y - 2 = 1/4x + 1
y = 1/4x + 1 + 2
y = 1/4x + 3
Answer:
y = (1/4)x - 3
Step-by-step explanation:
The slope-intercept form is y = mx + b. Here we are told that the line passes through (-8, -5) and that its slope is 1/4 (is that correct?).
Substituting -5 for y, -8 for x and 1/4 for m, we get an equation for the y-intercept, b:
-5 = (1/4)(-8) + b, or
-5 = -2 + b, so b = -3, and the desired equation is
y = (1/4)x - 3
The answer is a total of 9 hours
