Project #7913 - Operations Management

1) Thirteen students entered the business program at Hillcrest college 2 years ago. The following table indicates what each student scored on the high school SAT math exam and their grade-point averages (GPA's) after students were in the Hillcrest program for two years.

a) The least-squares regresson equation that shows the best relationship between GPA and the SAT score is (round your responses to four decimal places):

y(yHat)=___+___x

where y(yHat)=GPA and x=SAT score

b)For a student with an SAT score of 390, the expected GPA=____ (round your answer to two decimal places)

For a student with an SAT score of 790, the expected GPA=___ (round your answer to two decimal places)

The coefficient of determination for the least-squares regression model is ______ (round your answer to four decimal places.)

The coefficient of determination shows that by using this model about _____ of the variaion is explained by the model. (1/2, 1/3, 2/3)

Student A B C D E F

G

SAT Score 419 380 585 687 608 390 418
GPA 2.90 2.93 3.00 3.48 3.69 2.85 2.12
Student H I J K L M  
SAT Score 481 734 501 613 709 370  

GPA

2.56 3.20 2.01 2.77 3.92 1.58

 

Subject Business
Due By (Pacific Time) 06/18/2013 12:00 am
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