Question

# #4: A graduate student in educational psychology was interested in the relationship between the amount of...

#4: A graduate student in educational psychology was interested in the relationship between the amount of money a high school student’s parents spend on SAT preparation and the number of points that the students SAT Verbal score improves. Her results for 8 students are listed below (X = amount of money spent on test preparation, Y = amount of increase in Verbal SAT score.)

STUDENT                                         X                                             Y

A                                                         100                                         20

B                                                         600                                        70

C                                                          150                                          40

D                                                         300                                         80

E                                                          400                                         30

F                                                          800                                         110

G                                                         200                                         10

H                                                         700                                         90

According to this data, what will a student’s SAT verbal score if his or her parents spend 900.00 on test preparation? What will the score be if he or she spends 500.00? What if they spend no money at all on test preparation?

The obtained regression equation is given below:

y = 0.1142x + 9.873

Let's estimate the value of Y at x = 500

y = 0.1142x + 9.873

= 0.1142(900) + 9.873

= 112.653

Let's estimate the value of Y at x = 500

y = 0.1142x + 9.873

= 0.1142(500) + 9.873

= 66.973

Now, what is the money spent is equal to 0,

If the amount is zero then the increase in the SAT score will be equal to 9.873 as it is the value of Y-intercept.

y = 0.1142x + 9.873

= 0.1142(0) + 9.873

= 0 + 9.873

= 9873

#### Earn Coins

Coins can be redeemed for fabulous gifts.

##### Need Online Homework Help?

Most questions answered within 1 hours.

##### Active Questions
• Electrons removed from H2O molecules are transported through the photosystems and photosynthetic electron transport chain and...
• AFN Equation Broussard Skateboard's sales are expected to increase by 15% from \$7.0 million in 2016...
• Suppose you received a gift of \$2000 cash on your 21st birthday. Further suppose you used...
• Researchers run an experiment across 5 different Research Design and Analysis classes, each with 22 students....
• the trump administration has propsed providing subsidies for coal and nuclear plants. what is the reasoning...
• In the main(), below, write a program that prompts for (1) how many values to sum,...