Question

Using the equation y = .96x + 45.55, find the predicted scores, and residuals for each time listed in the table.

Time Spent Studying 52 37 31 9 26 40 22 10 45 34 19 60

Grade on Test 95 84 72 58 77 86 72 43 90 81 62 98

Predicted Scores ? ? ? ? ? ? ? ? ? ? ? ?

Residuals ? ? ? ? ? ? ? ? ? ? ? ?

Answer 1

so what is the problem

Answer 2

i dont understand what it wants.

Answer 3

@rayne612 maybe you can explain this to her

Answer 4

do you understand this question?

Answer 5

I was doing it like how you would solve an algebraic

Answer 6

@alyssa_xo

Answer 7

I can help

Answer 8

Is this statistics?

Answer 9

Ok so the x value is the scores on the test

Answer 10

i figured the other way around. is it? I literally dont know

Answer 11

@jackmullen55

Answer 12

do you know what to do @theopenstudyowl

Answer 13

My bad you want to use the time studied as the x value

Answer 14

And score for y
So for the first one
95 = .96(52) + 45.55 = 95.42

Answer 15

95.47*

Answer 16

Do you know what to do now?

Answer 17

@AJLYAMBER96

Answer 18

yeah sorry im here @jackmullen55 yeah i think i do for that part. can you help me on another part of the assignment?

Answer 19

Yeah

Answer 20

Create a scatter plot with the predicted line of best fit drawn on it. You may hand draw or utilize Geogebra

Answer 21

i dont understand this either

Answer 22

So you take a graph and just plot the points time spent being x and grade score being y
(e.g. for the first one you would put a point at (52, 95))

Answer 23

what do i do with the residual, etc

Answer 24

The residual is not part of this problem

Answer 25

ok for the first question i need the predicted score and the residual. The grade is that used to find the predicted score or residual?

Answer 26

@jackmullen55

Answer 27

What?

Answer 28

@AJLYAMBER96

Answer 29

the first part. I have to answer both sections of the predicted score and the residuals. You helped me withthe predicted score right? im confused

Answer 30

@jackmullen55

Answer 31

I did. The residuals and predicted scores don't matter in the second one

Answer 32

95 = .96(52) + 45.55 = 95.42 <----- is this the equation for the predicted score? how do i find the residual. I know I'm still on the first part.

Answer 33

@jackmullen55

Answer 34

i need help with the residual and understanding what I need to do.